Plumber and heating engineer working in New Haw

April 2026

Plumbers, Boiler Servicing and Underfloor Heating in New Haw

Local plumber and heating engineer covering New Haw and Woodham. Boiler servicing, replacements, and underfloor heating retrofit specialists. Gas Safe registered.

New Haw is one of the closest villages to our Addlestone base - often five minutes door to door. The housing stock here is dominated by 1930s and 1940s semis with lots of original features, plus newer estates around Woodham Lane and the Basingstoke Canal. The age of the existing pipework and heating systems is the single biggest driver of the work we do here, from boiler replacements to full system overhauls.

Plumbers in New Haw (KT15)

We cover all of New Haw and Woodham, and because we’re so close, most planned work is same or next day. The typical problems we see in the older New Haw housing stock:

Lead pipework and mixed-metal joints - still present in some un-modernised homes. If you have any lead supply pipes, they should be replaced.
Old cast-iron soil stacks - often flaking internally and causing slow drainage and recurring blockages.
Gravity-fed hot water systems - tank in the loft, cylinder in the airing cupboard, weak shower pressure. See our piece on upgrading to a pressurised hot water system.
Water hammer and noisy pipes - common in older systems without modern arrestors. See noisy pipes and water hammer.
Cold spots on radiators - sludge build-up after 20+ years of the same water circulating. See radiators not heating up properly.

Boiler servicing in New Haw

The 1930s housing stock in New Haw has seen a lot of boilers come and go over the decades. We often find boilers that were cutting-edge in 2005 and are now limping along well past their sensible service life. An annual service keeps newer boilers reliable and warranty-valid, and helps you make an informed call on when to replace older ones.

Our service includes the full annual boiler service checks plus a free efficiency read - we’ll tell you how many pounds a year you’re losing to an inefficient old boiler so you can decide whether to keep servicing or move to a replacement.

Is it time to replace?

If your boiler is over 15 years old, has needed multiple repairs, or is rated below A on its efficiency label, replacement is usually the right call. Read when to replace your boiler and boiler replacement cost in Surrey.

New Haw homeowners should also check whether they qualify for any financial help - see boiler grants and schemes.

Moving the boiler’s location

Older New Haw homes often have the boiler in a kitchen cupboard, in an airing cupboard on the landing, or on a garage wall. Many homeowners take the opportunity of a replacement to move it somewhere more sensible. See how much it costs to move a boiler.

Underfloor heating retrofit in New Haw

Because most New Haw homes were built before underfloor heating was common, nearly every project we do here is a retrofit rather than a new install. The good news: modern overlay systems make it much easier than it used to be.

Three options that work in 1930s New Haw semis:

Low-profile overlay systems (15-25mm) - go on top of the existing floor. Ideal for kitchen-diner renovations where you’re lifting the floor anyway.
Dig-out and replace the slab - best performance but significant cost and disruption. Only makes sense as part of a larger renovation.
Electric mats under new tiles - perfect for bathroom refurbishments without lifting the rest of the floor.

Full approach: retrofitting underfloor heating and cost breakdown.

Getting the boiler sized right

If you’re adding underfloor heating to a 1930s New Haw semi, the heat loss is probably worse than a modern home - original windows, solid walls, and gaps everywhere. We’ll do a proper heat loss calc so your boiler is sized correctly and your underfloor heating actually keeps up on the coldest days. See combi vs system boilers.