Heating, Ventilation & Air Conditioning
Rainbow Fix Ltd trading as Rainbow Fix HVAC — heating, ventilation, air conditioning, plumbing and low-carbon home comfort solutions.
Complete home heating and plumbing
Keeping the core services Rainbow Fix has been known for while expanding the site around modern heating technology.
Air Source Heat Pumps
System design, sizing, cylinders, controls and integration with radiators or UFH.
Explore →Boilers & Heating
Boiler installation, servicing, repairs, controls, radiators and system upgrades.
Explore →Plumbing
General plumbing, cylinders, water softeners, repairs and domestic installation work.
Explore →Underfloor Heating
UFH design, installation, balancing, controls and heat-pump-ready low-temperature systems.
Explore →Bathrooms
Plumbing-led bathroom upgrades, remodelling and associated installation work.
Explore →Fault finding & advice
Practical diagnosis of heating and hot-water problems with clear options for repair or upgrade.
Contact us →Local experience, technical depth.
Rainbow Fix Ltd has traded since November 2007. The business was built around plumbing and heating in Marlow, with work spanning boiler installations, system design, radiators, power flushing, gas safety work, unvented hot-water cylinders and more.
About Rainbow Fix →Recent heating installations
Real Rainbow Fix installations — boilers, cylinders, system upgrades and plant-room work.
A long history of local recommendations
“Had a heating system overhaul, new boiler, new hot water tank, new pump, new TRV’s and smart controls... very professional.”Verified reviewer, SL7 · 2021
“Excellent job... clean, tidy and polite highly skilled people.”Verified reviewer · 2019
“Highly professional, kind and very tidy.”Verified reviewer, SL8 · 2019
Planning a heating upgrade?
Talk through your existing system, property and the best route forward.
We are accredited by major brands including Worcester Bosch, Vaillant, Viessmann, Glow-worm, Ideal, Baxi, Samsung, Daikin, Mitsubishi Electric and Grant.
Our Accreditations
Qualified. Certified. Trusted.
