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4.9 rating from 666 homeowners
Warm Up to Better Heating
Heating and air conditioning for homes and businesses across Brighton. Upfront quotes, certified technicians and same-day service.
Free surveyFully insuredFinancing available
Technician on the way
16+Years of experience
Trusted by businesses and homeowners across East Sussex
Fully InsuredEast SussexTop Rated2026Qualified EngineersTrained and registered5-Star ReviewsLocal customersWorkmanshipGuaranteed
Our Services
Heating, Cooling & Fresh Air
From urgent repairs to complete new systems, our own technicians handle every job from start to finish.
Boiler Installation
New A-rated combi, system and regular boilers with long manufacturer guarantees.
Learn MoreAir Source Heat Pumps
Low-carbon heating installed and commissioned by qualified engineers.
Learn MoreOur Success in Numbers
Comfort in Numbers
Our results come from careful work, trained technicians and a promise to treat every home like our own.
Get a Free Quote1,494+Projects completed
666+Happy clients
16+Years in business
31Towns covered
16+Years of experience
Our Story
Meet the Team
Your Partner for Year-Round Comfort
Sentinel has kept homes across Brighton comfortable since 2010. We're a local, family-run team that believes in honest advice, quality equipment and doing every job properly the first time.
- Our own trained technicians
- Upfront, written quotes
- Clean, tidy workmanship
- Local knowledge of Brighton homes
1,494+Projects completed
666+Happy customers
98%Would recommend
Our Projects
Hundreds of Happy Homes
Every job is done carefully and cleanly. Here are a few recent ones from around the area.
Testimonials
Trusted by Our Neighbours
“Annual service booked in minutes, engineer on time and really knowledgeable. Will use again.”
“New combi fitted in a day, old tank removed and everything left spotless. Great value.”
“Radiators upgraded throughout and the house has never been this warm. Tidy, friendly team.”
“Air conditioning fitted in our office over a weekend. No disruption and it works brilliantly.”
“They talked us through heat pumps honestly and helped us choose the right size for our house.”
How It Works
Start Your Project Today Comfort in 4 Simple Steps
Book a Visit
Pick a time that suits you, including evenings.
Honest Diagnosis
We find the real problem and explain your options.
Expert Repair or Install
Our technician completes the work cleanly and safely.
Service Area
Proudly serving Brighton and nearby
BrightonHoveLewesShoreham-by-SeaWorthingPeacehavenBurgess Hill
FAQ
Good to Know
Can you fit air source heat pumps?
Yes. We design, install and commission heat pump systems and can advise on available schemes.
How often should my boiler be serviced?
Once a year. An annual service keeps your boiler safe, efficient and within its manufacturer guarantee.
Do you cover emergency breakdowns?
Yes. We offer same-day call-outs for no heating or hot water across the area.
Are your engineers qualified?
Yes. Our engineers are fully qualified, registered for gas work and insured.
Should I repair or replace my boiler?
If your boiler is over 12 years old or keeps breaking down, a new A-rated boiler usually pays for itself. We'll advise honestly.
Too Hot or Too Cold? We Can Help
Don't wait for a breakdown. Book a service or get a free quote from our local team today.
Get Your Free Estimate
Fill out the form and our team will get back to you within 24 hours.