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Open-plan layouts have become a defining feature of modern Irish homes, whether in new builds or rear extensions to existing properties. The connection between kitchen, living, and garden spaces relies heavily on how the transition between indoors and outdoors is handled. Sliding doors, bi-fold doors, and large-format glazing are often the elements that make an open-plan design work, bringing in natural light, creating a sense of space, and providing direct access to patios, decks, and gardens.

Choosing the right door type

The right choice depends on the opening width, the available wall space, and how you want the door to operate day to day.

Sliding doors are ideal where wall space is limited. The panels glide along a track rather than swinging inward or outward, which means no floor area is lost to the door arc. They are well suited to kitchens and living rooms that open onto a patio or garden, and can accommodate wide openings with slim sightlines that maximise the glass area.

Bi-fold doors fold back in concertina panels, creating an almost fully open wall when the weather allows. They work best for wider openings where you want the option to remove the boundary between inside and outside entirely, ideal for entertaining or for homes where the garden is an extension of the living space.

French doors remain a popular choice for more traditional properties or smaller openings. They provide a wide, unobstructed access point and pair well with sidelights or fixed panels to increase the overall glazed area.

Light and spatial impact

The primary benefit of large-format glazing in an open-plan layout is natural light. A well-positioned sliding or bi-fold door can transform how a room feels, reducing the need for artificial lighting during the day and creating a visual connection to the garden that makes the interior feel significantly larger.

Fairco’s aluminium systems are particularly effective in this context. Their slim frame profiles allow for maximum glass area, which is important when the goal is to flood a space with light. For homeowners who prefer uPVC, the OMNIA Flush range offers a clean, contemporary aesthetic with strong thermal performance.

Thermal performance in large openings

A common concern with large glazed openings is heat loss. In Ireland’s climate, it is a legitimate consideration. However, modern sliding and bi-fold door systems are engineered to deliver strong thermal performance even at scale. Thermally broken aluminium frames, multi-chambered uPVC profiles, double or triple glazing with low-emissivity coatings, and precision-fitted seals all contribute to keeping U-values low and warmth where it belongs.

Fairco’s door systems are tested for air permeability, water tightness, and wind resistance, ensuring they perform in exposed and coastal locations as well as sheltered suburban settings. Combined with PAS 24:2022 certified security, large openings do not need to mean compromised performance or protection.

Making it work for your home

The best results come from early planning. Orientation, opening configuration, frame material, glazing specification, and threshold design all influence how a sliding or bi-fold door performs in practice. Fairco’s design team can advise on the right combination for your layout, your budget, and your priorities, whether you are building from scratch or adding a rear extension.

Book a free consultation to explore your options, or visit our showrooms to see sliding, bi-fold, and French door systems in person.

Bathrooms and kitchens are the two rooms in the house that generate the most moisture. Showers, baths, boiling water, cooking steam, and the daily cycle of hot and cold air all create conditions that place specific demands on windows. Getting the specification right in these rooms is not just about aesthetics. It is about managing moisture, maintaining ventilation, and ensuring long-term performance in an environment that is harder on windows than any other part of the home.

Moisture and condensation

Condensation forms when warm, moist air meets a cold surface. In bathrooms and kitchens, this happens frequently and often intensely. If the internal glass surface temperature is too low, moisture will settle on the window, run down the glass, and pool on the sill. Over time, this leads to mould growth, damage to paint and plaster, and potential deterioration of the window reveal.

The glazing specification makes a direct difference here. Windows with low U-values keep the internal glass surface warmer, reducing the temperature gap that causes condensation to form. Triple glazing performs better than double in high-moisture rooms because the inner pane stays closer to room temperature. Warm-edge spacer bars also play an important role by reducing heat loss at the glass perimeter, which is where condensation typically appears first.

Ventilation that works with moisture, not against it

Removing moisture-laden air quickly and efficiently is essential in both rooms. Extractor fans handle the bulk of the work, but windows provide a valuable secondary ventilation route and, in many bathrooms, the primary one.

Tilt-and-turn windows are particularly effective in these spaces. In the tilt position, the window opens inward from the top, allowing warm, moist air to escape at ceiling level where it naturally rises, while keeping the lower part of the window closed. This provides efficient ventilation at floor level without draughts and without rain entering the room. It also means the window can remain open during a shower or while cooking without compromising security, which matters in ground-floor bathrooms or kitchens that face a public area.

Built-in trickle vents offer continuous background ventilation even when the window is fully closed. In rooms where moisture builds up quickly, this steady airflow helps prevent condensation from forming in the first place. More on how ventilation and energy efficiency work together is covered in our practical tips guide.

Privacy without sacrificing light

Bathrooms in particular often face a neighbour, a side passage, or a street. Privacy is a priority, but so is natural light. Obscured or frosted glass provides an effective solution, allowing daylight to enter the room while preventing a clear view from outside. Several levels of obscurity are available, from a light texture that softens the view to a heavy frost that blocks it almost entirely.

The choice depends on the room’s position and the level of privacy required. A first-floor bathroom may only need a light obscure, while a ground-floor window facing a footpath will benefit from a heavier grade. Fairco can advise on the right level for your situation and supply obscured glass as part of the standard glazing specification, with no compromise on thermal performance or security.

Practical considerations

Beyond glazing and ventilation, there are a few practical points worth thinking about. Windows above kitchen worktops or behind sinks should be easy to open and close without leaning across surfaces. Tilt-and-turn handles are operated with a single hand from a comfortable position, making them well-suited to these locations. uPVC frames require no repainting and are easy to clean with a damp cloth, which matters in rooms where grease, steam, and cleaning products are part of daily life. Safety glazing regulations apply to any window with a sill height below 800mm from floor level, which is common in both kitchens and bathrooms.

If you are upgrading your kitchen or bathroom windows, or planning a renovation that includes these rooms, Fairco’s team can help you choose the right combination of glazing, ventilation, privacy, and opening style. Book a free consultation or visit our showrooms to see the options in person.

Ireland has over 7,500 kilometres of coastline. From the exposed Atlantic coast of the west to the Irish Sea shoreline of Dublin and Wicklow, thousands of homes sit within direct reach of salt-laden air, wind-driven rain, and sustained exposure to some of the harshest weather conditions in northern Europe. For these properties, the specification of windows and doors is not just an energy or aesthetic decision. It is a durability decision, and getting it wrong can be expensive.

What the coast does to windows and doors

Salt air is corrosive. It attacks metal components, degrades unprotected finishes, and accelerates the ageing of hardware, seals, and fixings. Properties within a few kilometres of the shoreline are exposed to airborne salt on a near-daily basis, and the effect compounds over years. Hinges can stiffen or seize. Locking mechanisms can pit and corrode. Unprotected aluminium finishes can degrade within a decade. Even stainless steel fixings are not immune if they are not specified to the correct grade for marine environments.

Wind-driven rain presents a different challenge. Ireland’s prevailing south-westerly winds carry moisture horizontally against the building envelope, testing the water-tightness of every window and door junction. Standard products tested under moderate conditions may perform adequately inland but fail to keep water out when subjected to the sustained pressure differentials that exposed coastal locations produce.

Why material choice matters more on the coast

uPVC is inherently well-suited to coastal environments. It does not corrode, does not require repainting, and is unaffected by salt air. The frame material itself will not degrade in the way that untreated timber or unprotected metals can. This is one of the reasons uPVC remains the most popular choice for coastal properties across Ireland. Fairco’s Performance uPVC and OMNIA Flush ranges are manufactured using the highest grade of uPVC available for domestic applications, ensuring long-term stability in exposed conditions.

For homeowners who prefer the slimmer sightlines and contemporary aesthetic of aluminium, material quality becomes even more critical. Not all aluminium window systems are equal in coastal performance. Thermally broken aluminium profiles with high-quality powder-coated or marine-grade finishes offer significantly better long-term durability than standard finishes. The quality of the coating, its thickness, and how well it has been applied all determine how long the frame resists the effects of salt and UV exposure.

Severe weather testing

Windows and doors are tested for three key weather performance criteria under EN 14351-1: air permeability, water tightness, and wind resistance. Each is rated on a classified scale, and the ratings a product achieves determine the conditions it is suitable for.

For coastal and exposed locations, specifying products that have been tested to higher classifications in all three categories is essential. A product rated for moderate exposure may pass building regulations but still allow water ingress or draughts under the sustained wind pressures that coastal properties experience during winter storms. Fairco products are severe weather tested and manufactured to consistent tolerances, ensuring that the performance demonstrated in laboratory testing translates to real-world conditions on site.

Hardware and seals

The frame material often gets the attention, but hardware and seals are equally important in coastal specifications. Locking mechanisms, hinges, and friction stays must resist corrosion over the full life of the window. EPDM gaskets and weather seals need to maintain flexibility and compression despite constant exposure to salt, UV, and temperature cycling. Products with PAS 24:2022 certification are tested under rigorous mechanical and impact conditions, which provides a baseline of confidence in hardware durability, but coastal specification may warrant additional attention to the grade of stainless steel used in fixings and the quality of the seal system.

Specification for peace of mind

If your home is on or near the coast, it is worth discussing your location and exposure with your window supplier at the outset. Orientation, elevation, proximity to the shoreline, and whether the property is sheltered or fully exposed all influence the right specification. The difference between a product that performs well for a decade and one that performs well for 25 years often comes down to details that are invisible once the window is installed: the seal compound, the hardware grade, the coating quality, and the testing classification.

Fairco’s team can assess your property’s exposure and recommend the right combination of materials, glazing, and hardware for lasting coastal performance. Book a free consultation to discuss your project.

Whether you are building a new home or upgrading the windows in an existing property, the end goal is the same: high-performance windows and doors that look right, insulate well, and last. But the path to getting there is different in each case. Regulations, structural realities, and the impact on your home’s energy rating all vary depending on the type of project, and understanding these differences early helps avoid costly mistakes or missed opportunities.

Regulatory differences

New builds in Ireland must comply with Part L of the Building Regulations, which sets minimum energy performance standards for the entire dwelling. Under the current Nearly Zero Energy Building (NZEB) requirements, windows and doors must contribute to an overall energy model that accounts for insulation, airtightness, heating systems, and renewables. This means the glazing specification is not considered in isolation. It is part of a calculated whole-building approach, giving architects and specifiers some flexibility to balance U-values across different elements.

For renovations, the picture is different. Replacement windows must meet minimum elemental U-value requirements regardless of what else is happening in the building. If you are replacing windows in an existing home, each unit needs to meet the performance threshold on its own merit. There is also the question of whether the project triggers the major renovation threshold, which applies when more than 25% of the building envelope is being upgraded. If it does, the NZEB requirements for new builds come into play, raising the compliance bar significantly.

Planning permission adds another layer for renovation projects. Most like-for-like replacements are exempt from planning permission, but changes to window size, shape, or placement, or work on properties in conservation areas, may require formal consent.

Structural and practical constraints

In a new build, openings are designed around the windows. Wall depth, lintel positioning, insulation zones, and service runs are all planned with the final window specification in mind. This gives the design team full control over how the window integrates with the building envelope, including where it sits within the wall depth for optimal thermal bridging performance.

Renovations rarely offer that luxury. Existing openings are fixed. Wall construction varies, sometimes within the same property. Lintels may be undersized for heavier triple-glazed units. Reveals may be shallow, limiting frame depth options. And older walls may present challenges for achieving an airtight seal around the frame. None of these are insurmountable, but they require careful survey work and product selection to ensure the new windows perform as intended within the constraints of the existing structure.

BER impact

For new builds, the BER is calculated at design stage and must meet a minimum A2 or A3 rating. Windows are a key input in that calculation, and specifying high-performance glazing, whether double or triple, directly affects the modelled result.

For renovations, the BER impact of new windows can be dramatic, particularly in older homes where existing glazing is single or early double. Upgrading to modern high-performance units can shift a home’s BER by one or two grades, which in turn affects property value and eligibility for SEAI grant support. In many cases, windows are the single most visible and impactful upgrade a homeowner can make to their energy rating.

Getting the specification right

The key takeaway is that specification is not one-size-fits-all. A new build allows for an integrated design approach where windows are part of a coordinated energy strategy. A renovation demands adaptability, accurate surveying, and product selection that works within existing constraints while still delivering meaningful performance improvements.

Fairco works across both project types, from full new-build specifications to single-property renovations. Our survey, manufacturing, and installation process is designed to handle the complexities of each, ensuring that what is specified is what is delivered, regardless of the starting point.

Book a free consultation to discuss your project with the Fairco team.

Energy costs in Ireland remain stubbornly high. According to recent price tracking data, the average annual electricity bill for an Irish household now stands at over €1,800, with unit rates averaging around 36 cent per kWh. Gas prices remain roughly double their pre-2022 levels, and a further carbon tax increase taking effect in May 2026 will add to household heating costs. Ongoing geopolitical instability, including disruption to global oil and gas supply routes, continues to put upward pressure on wholesale energy markets.

For homeowners, these rising costs make one thing increasingly clear: reducing the amount of energy your home wastes is no longer optional. It is one of the most effective financial decisions you can make.

Where your heat is going

The Sustainable Energy Authority of Ireland (SEAI) estimates that around 10% of a home’s heat is lost through windows and doors. In older or poorly insulated properties, that figure can be significantly higher, with some industry estimates placing it as high as 30% in un-retrofitted homes. Draughty frames, single or early double glazing, worn seals, and thermally weak profiles all contribute to heat escaping, forcing your heating system to work harder and longer to maintain a comfortable temperature.

Addressing this heat loss at the source, by upgrading to modern, high-performance glazing, directly reduces the energy your home consumes. That translates into lower bills, greater comfort, and less reliance on volatile energy markets.

How modern windows and doors reduce energy waste

Today’s energy-efficient windows and doors are engineered to minimise heat transfer through the building envelope. Key performance features include triple glazing with low-emissivity coatings, argon or krypton gas-filled cavities, warm-edge spacer bars that reduce heat loss at the glass perimeter, and multi-chambered or thermally broken frames that prevent conduction through the profile itself.

The combined effect is a dramatically lower U-value, meaning less heat passes through the window or door assembly. Fairco’s OMNIA Flush range, for example, achieves U-values as low as 0.75 W/m²K with triple glazing, while Performance uPVC and aluminium systems also deliver strong thermal performance across a range of styles and configurations.

Crucially, the benefit is not limited to the glazing alone. Precision installation with properly compressed seals and airtight detailing ensures that performance is maintained at every junction between the window and the wall. This is where the quality of both product and installer makes a measurable difference.

A long-term investment, not just a short-term fix

Upgrading windows and doors is not a quick fix for one winter. It is a long-term investment that continues to deliver savings year after year. With energy prices unlikely to return to pre-crisis levels, and carbon tax set to rise annually towards €100 per tonne by 2030, the cumulative financial benefit of reduced energy consumption only grows over time.

There is also a direct impact on your home’s Building Energy Rating (BER). Improved glazing and airtightness contribute to a better rating, which in turn supports property value and may improve eligibility for SEAI grant support.

Take control of your energy costs

You cannot control wholesale gas prices or global supply disruptions. But you can control how efficiently your home retains heat. Investing in high-performance windows and doors is one of the most practical steps any homeowner can take to reduce energy waste, lower bills, and future-proof against continued price uncertainty.

Contact Fairco for a free consultation and find out how upgrading your windows and doors can make a real difference to your home’s comfort and running costs.

Every Fairco window and door begins life in our production facility in County Antrim. It is where raw profiles become finished products, where design specifications are translated into precise, measurable outcomes, and where quality is built in rather than inspected afterwards. For over 35 years, manufacturing in-house has been central to how Fairco operates, and it remains the single biggest reason we can deliver consistent performance across almost 40,000 homes.

Why in-house manufacturing matters

Many window and door companies source finished products from third-party fabricators. Fairco does not. By controlling the entire production process under one roof, we maintain direct oversight of every stage, from material selection and profile cutting through to glazing, hardware fitting, and final quality checks.

This matters because a window is not a single component. It is a system. The frame, glazing, seals, hardware, and their assembly all determine how the finished product performs in your home. When one company is responsible for all of those elements, there is nowhere for standards to slip between handoffs. What is designed and measured is exactly what is produced.

Materials and precision

Fairco uses the highest-grade uPVC available for domestic applications. Profiles are cut, reinforced, and welded using CNC-controlled machinery to ensure tight tolerances and consistent frame geometry across every unit. This precision directly affects how well seals compress, how smoothly hardware operates, and how effectively the window performs thermally over its lifetime.

Glazing units are specified to match the performance requirements of each project, whether that is high-performance double glazing or triple glazing for maximum thermal efficiency. Hardware is selected and fitted to complement the frame and sash weight, ensuring smooth, reliable operation and PAS 24:2022 certified security across the full range.

From the factory to your home

The advantage of in-house manufacturing extends beyond the factory floor. Because Fairco also employs its own survey and installation teams, there is a single chain of responsibility from the first consultation through to the finished installation. Your windows and doors are surveyed by our team, built to those exact measurements in Antrim, and installed by professionals who understand the product because they work with it every day.

This integrated approach, covering design, manufacture, and installation, is what separates Fairco from companies that assemble or resell products made elsewhere. It is also what allows us to stand behind every product with a 10-year manufacturer’s guarantee.

See it for yourself

Our Santry and Deansgrange showrooms display the full range of products manufactured at the Antrim facility, including Performance uPVC, OMNIA Flush, aluminium, and sash windows, in a wide selection of colours, finishes, and specifications. It is the best way to experience the quality of what comes out of our production line before it goes into your home.

Book a free consultation to discuss your project with the Fairco team.