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Your local heating and air conditioning engineers, serving Gorseinon and the Llwchwr area for over 50 years. Boiler service, repair and installation across the SA4 area, plus air conditioning installation, servicing and repair for homes and businesses.
From the terraces of Gorseinon up through Loughor and Penllergaer, Eric Collier & Son has kept Llwchwr area homes and businesses warm for over 50 years. Whether your boiler needs its annual service, has broken down, or is due for replacement, our Gas Safe registered engineers cover the whole of Gorseinon and the surrounding SA4 area.
And it is not only about keeping warm. With hotter summers now the norm, more Gorseinon households and businesses are fitting air conditioning that cools in the heat and heats efficiently in winter, so we look after both sides of your comfort under one roof.

When your boiler needs attention in Gorseinon, you want an engineer who turns up when they say they will, works cleanly, and tells you the truth about what they find. As a Gas Safe registered firm that has served the Llwchwr area for over 50 years, we know the housing stock across Gorseinon, Loughor, Penllergaer, Garth and Llangynwyd, and we treat every home and business as if it were our own.
There is no hard sell and no hidden charges. You will get a clear explanation of what your boiler needs and a fixed price quoted before any work begins.

An annual boiler service is the single best way to keep your Gorseinon home warm, safe and running efficiently. A well-maintained boiler is less likely to break down in the depths of winter, runs more economically, and helps protect any manufacturer warranty.
Our Gas Safe registered engineers carry out a full safety check of your gas pipework and connections, combustion and flue checks, and a thorough inspection of all controls and components. If we spot an issue, we will explain it clearly, with no pressure and no upselling.

A boiler breakdown in Gorseinon rarely happens at a convenient time. Whether your boiler has stopped firing, is losing pressure, making unusual noises, or showing a fault code, our engineers can diagnose the problem and get your heating and hot water back.
We cover the whole of Gorseinon and the surrounding SA4 area, from the town centre up through Loughor and Penllergaer. You will get a clear fault diagnosis before any work begins, so you always know what is being done and why.

From routine servicing and repairs through to full boiler replacement, we cover every stage of a boiler's life in Gorseinon. When you need a new boiler, our engineers will advise on the right system for your property and budget, then supply and install it to a high standard.
When the heating fails and you need help quickly, get in touch and we will arrange to attend as soon as we can. Being local to the Llwchwr area means we are never far from Gorseinon when a breakdown strikes.

Beyond the boiler itself, we look after the whole heating system in your Gorseinon home. That means radiators, controls, pipework and full central heating installations, whether you are upgrading an ageing system or fitting heating into a newly renovated property.
If your radiators are cold at the bottom, your system is noisy, or some rooms never quite warm up, our engineers can diagnose the cause and put it right, from a simple power flush to a full system upgrade.

Whether your Gorseinon property runs on mains gas or oil, we cover both fuel types. For gas heating, that means boiler servicing, system repairs, radiator work and full installations across Gorseinon and the surrounding SA4 area.
For the more rural properties around Garth, Llangynwyd and the upper valley, where oil is more common, we carry out oil boiler service, repair and installation as part of the same friendly, local service.
Installation, servicing and repair for homes and businesses across Gorseinon, Loughor, Penllergaer and the SA4 area.
This summer has been one of the hottest on record, and across Gorseinon and the Llwchwr area we have seen a sharp rise in homes and businesses asking the same question: how do we keep cool when the heating side of the house is the last thing on our minds? Air conditioning is no longer a luxury reserved for offices. With back-to-back heatwaves, more Gorseinon households are fitting cooling that also doubles as efficient heating through the colder months.
As a Gas Safe registered firm that has served the area for over 50 years, Eric Collier & Son install, service and repair air conditioning for homes and businesses right across Gorseinon, Loughor, Penllergaer and the surrounding SA4 area.
Whether you want to cool a single bedroom, a whole home or a commercial space, our engineers assess the room, recommend the right system for the space and install it cleanly with minimal disruption. Modern units cool in summer and heat efficiently in winter, so the system earns its keep all year round rather than sitting idle for nine months.
A serviced unit runs colder, quieter and cheaper. Regular maintenance keeps filters clean, checks refrigerant levels and catches small faults before they become expensive breakdowns, exactly the kind that surface the moment a heatwave arrives and every unit in Gorseinon is working overtime. We service systems we fitted and systems installed by others.
Unit blowing warm, leaking, tripping or making unfamiliar noises? Our engineers diagnose the fault, re-gas where needed and get your cooling back before the next hot spell. We cover both domestic and commercial air conditioning repairs across Gorseinon and the wider valley.
From a comfortable living room to a shop, office or workshop that has to stay workable through a heatwave, we handle domestic and commercial air conditioning alike, with servicing plans available to keep business systems compliant and running.

Many older Gorseinon homes are heated by warm air systems rather than radiators. These systems need specialist knowledge that not every heating firm can offer, and it is an area we have worked with for decades.
We service, repair and, where appropriate, replace warm air heating units across Gorseinon and the Llwchwr area, helping you keep an existing system running well or move to a modern, more efficient alternative.

Gorseinon landlords are legally required to hold a current gas safety certificate (CP12) for every rented property with gas appliances. Our Gas Safe registered engineers carry out annual landlord inspections across Gorseinon and the surrounding SA4 area.
The inspection covers all gas appliances, pipework, flues and ventilation. If any remedial work is needed, in most cases the same engineer can carry it out, saving you time and a second visit.

Gas safety certificates are not only for landlords. Homeowners, managing agents and businesses in Gorseinon often need a gas safety inspection for peace of mind, for a property sale, or to meet the terms of a mortgage or insurance policy.
Our Gas Safe registered engineers carry out gas safety checks and issue certificates for domestic and commercial properties across Gorseinon and the Llwchwr area.
For larger commercial and industrial premises across Gorseinon and the Llwchwr area, air handling units manage ventilation, air quality and temperature across the whole building. These systems need regular attention to keep running efficiently and to stay compliant.
We install, service and maintain air handling units for Gorseinon businesses, from shops and offices to workshops and industrial units, keeping the air moving and the working environment comfortable all year round.
Planned maintenance keeps your air handling units efficient, compliant and less likely to fail when you need them most. Call 0845 200 0100 to discuss servicing for your Gorseinon premises.

From Gorseinon town up through the valley, we cover the SA4 area and the surrounding villages.
Yes. We cover Gorseinon, Loughor, Penllergaer and the surrounding SA4 area for air conditioning installation, servicing and repair.
Yes. Modern air conditioning systems run in reverse to provide efficient heating in the colder months, so the system is useful all year, not just during a hot summer.
Get in touch and we will diagnose the fault, re-gas if required and get your cooling back up and running as quickly as we can across Gorseinon and the wider valley.
Eric Collier & Son has served the Gorseinon area and the wider Llwchwr area for over 50 years. The team covers Gorseinon, Loughor, Penllergaer, Garth and Llangynwyd, with engineers who genuinely know the area.
Yes. Our Gas Safe registered engineers diagnose and repair boiler faults across Gorseinon, from no heating and no hot water to pressure loss, unusual noises and fault codes. Call 0845 200 0100 to arrange a repair.
Yes. We cover Gorseinon and the surrounding SA4 area, including Loughor, Penllergaer, Garth and Llangynwyd, for boiler service, repair and installation as well as air conditioning.
Local to Gorseinon and the Llwchwr area. Gas Safe registered. Over 50 years serving the area. Free, no-obligation quotes on boiler work and air conditioning.
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KNM Building, 9 Heol Mostyn, Village Farm Industrial Estate, Pyle, Bridgend, CF33 6BJ
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