Scores based on 55 reviews

Reliability & timekeeping

Invoice history based on 42 reviews.

Invoice History
Charged as per quote / estimate95.24%
Above quote / estimate: kept informed4.76%
Appointments reported as missed (6 months) 0
Average score 9.8
55 reviews
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Gareth Williams Heating was formed in 2007 and now has a strong customer base throughout Newport and South Wales. We specialise in Boiler Installations and are Worcester Bosch Accredited and Vaillant / Atag approved Installers, we can offer up to 10 years parts and labour warranty on New Boiler Installations.

Gareth Williams Heating is a growing Boiler Replacement Company, offering a professional and friendly service. Gareth began in the industry in 1986 as an apprentice with Wales Gas and has 30 years experience.

We are proud to be recognised for providing excellent customer care, high quality workmanship and for offering a reliable service at an affordable cost.

We provide free, no obligation, written quotations and we always offer great value for money. There are no hidden charges with Gareth Williams Heating. Once we give you a price estimate, we guarantee that it is fixed so there are never any surprises.

We would like you to view our many happy customer testimonials on our website. You can be assured of the quality and value of our work before you call us for a free quotation and consultation.  

We are fully insured and well trained Gas Safe Registered Engineers. 


Installation of new boilers

System conversions to combi boilers

Central Heating Installations

Gas Appliance repair and servicing

Cookers, Hobs and Radiators installed

Landlord certificates (CP 12)

System Power flushing using a Kamko Quantum CF90 & Magnacleanse machine

We now offer 0% finance (10 months) on new Worcester Bosch boiler Installations

Based in

Newport, Gwent, NP20 3FS

Works in

Newport, Cardiff, Cwmbran, Caldicot, Gwent

Team photos

Gareth Williams


Daniel Meglio

Heating Engineer