Specialists in the installation and maintenance of boilers, central heating and air conditioning in High Wycombe and the surrounding areas.
A family-run team covering everything from a new boiler to a full multi-room air conditioning system.
Bosch Climate systems — cooling in summer, efficient heating in winter. Plan your installation online: choose your property, place the units room by room, and get an indicative price in minutes.
Worcester Bosch ‘Gold’ Accredited Installer. Gas, oil and LPG.
Learn more →Full design and installation, tailored to your home.
Learn more →All makes repaired and serviced by qualified engineers.
Learn more →Kamco power-flushing machines with Adey Magna-Cleanse filters.
Learn more →Guild-approved heat pump installs — Vaillant aroTHERM, £7,500 grant.
Learn more →Nest, Bosch EasyControl and Drayton Wiser.
Learn more →As a Heat Geek partner and member of the Guild of Master Heat Engineers, we install air source heat pumps to a properly-designed, approved-installer standard — efficient, low-carbon heating for your home.
We're incredibly proud to be among the few engineers recognised as masters in our field — and to have been selected to help build the Guild of Master Heat Engineers' knowledge base. The Guild is a peer-assessed network of genuinely excellent heat-pump engineers: you're not in it because you paid a fee or passed an exam, but because the rest of the trade knows the work is good.
For you, that means a heat pump designed and installed to one of the highest standards in the country — by a local team that other master engineers respect.
Our free calculator compares your current boiler, a brand-new gas boiler and an air source heat pump using today's live energy prices — put in your own figures and see the difference. Below are real installs we've carried out across High Wycombe and the surrounding areas.



Smith's Heating Services Ltd is a family-run, Gas Safe and OFTEC registered business serving High Wycombe and the surrounding areas. We don't just want to fit a new boiler — we want to build a long-term relationship with every customer.
We're a family-run business, not a sales machine — and our managing director Richard Smith would rather give you a straight answer than a hard sell. Our guides tackle the questions we're asked most.
Usually not — most installs are permitted development. The 2025 rules, the exceptions, and the heat pump + air conditioning case.
Read the guide →The simple physics behind why a heat pump gives out far more heat than the electricity it uses.
Read the guide →Will your next boiler run on hydrogen, or will you switch to a heat pump? An honest look.
Read the guide →Practical, mostly-free ways to cut what you spend on heating and hot water.
Read the guide →We're proud of our reputation across the review platforms our customers trust — nearly 2,000 verified reviews across Checkatrade, Trustpilot and Google.
Yes — we're Gas Safe registered (gas) and OFTEC registered (oil), a Worcester Bosch Gold Accredited Installer since 2003, and members of CIPHE and the Guild of Master Heat Engineers.
It depends on your home and the boiler you choose, so we give a clear, no-obligation quote after a quick look. Worcester Bosch warranties run up to 10 years (gas) / 7 years (oil), and finance is available to spread the cost.
Yes — we're a Heat Geek partner and a Guild of Master Heat Engineers approved installer, fitting the Vaillant aroTHERM range. The £7,500 Boiler Upgrade Scheme grant is available on qualifying installations.
Yes. For heating breakdowns and urgent issues, day or night, call our 24-hour emergency line on 01494 452502.
We're based in High Wycombe and cover Buckinghamshire, Berkshire, Hertfordshire, Oxfordshire and West London. See our areas we cover.
Yes — we can introduce you to finance providers, including interest-free options on selected work. See our finance options (subject to status).