Boiler Swaps
Upgrade to a more efficient boiler and save on your energy bills.
- A-rated combi & system boilers
- Free efficiency assessment
- Up to 10-year warranties
Available now · All of Essex
Your localheating & plumbingexperts
Reliable. Professional. Local. Keeping your home warm, comfortable and running smoothly — right across Essex.
100%
Gas Safe Registered
5.0★
Google Rating
24/7
Emergency Response
Gas Safe Registered✦
Fully Qualified & Insured✦
Boiler Swaps✦
System Conversions✦
Bathrooms✦
Boiler Servicing✦
24/7 Breakdowns✦
5-Star Rated✦
What we do
Heating, plumbing & bathrooms
Five core services, one trusted local team. Quality work, every time.
System Conversions
Convert your heating system to perfectly suit your home and needs.
- Conventional to combi
- Smart controls & zoning
- Full system flush
Bathrooms
Beautiful, high-quality bathrooms designed and installed end to end.
- Design & supply
- Tiling & waterproofing
- Full project management
Boiler Break Downs
Fast response to get your heating back up and running, day or night.
- Rapid fault diagnosis
- All makes & models
- 24/7 emergency call-out
Boiler Services
Keep your boiler running safely and efficiently all year round.
- Full annual service
- Gas Safe safety check
- Landlord certificates
Why choose SX Heating
Built on trust
01
Thermal precision
Every install is heat-loss calculated and commissioned to manufacturer spec, so your system runs quiet, efficient and warm for years.
02
Local reliability
We live and work across Essex. When you call, you get a local engineer who answers — not a national call centre.
03
Transparent pricing
You get a clear written quote before we start. No surprise call-out fees, no padded invoices, no jargon.
04
Clean workmanship
Dust sheets down, boots off, mess taken away. We leave your home exactly as we found it — only warmer.
Fully Qualified & Insured
Gas Safe registered engineers, fully insured on every job.
Reliable & Trustworthy
Turn up when we say, tidy up when we leave — every time.
Local, Friendly Service
An Essex team that treats your home like our own.
Competitive Pricing
Clear, upfront quotes with no hidden extras.
Safety first
Gas Safe registered
Working on gas appliances legally requires Gas Safe registration. Every engineer we send is qualified, insured and works strictly to regulation — so your family and home are always protected.
- Gas Safe registered engineers on every gas job
- Fully insured — public liability cover as standard
- Manufacturer-approved installation methods
- Landlord Gas Safety (CP12) certificates issued
GAS SAFE
Register
100%
Compliant work
Fully
Insured & qualified
Always ask any heating engineer for their Gas Safe ID card — we're happy to show ours before we start work.
Where we work
Covering all of Essex
From Chelmsford to the coast — enter your town to confirm a local engineer can reach you.
ChelmsfordColchesterSouthend-on-SeaBasildonHarlowBrentwoodBraintreeMaldonWithamBillericayWickfordRayleighClacton-on-SeaEppingOngar+ everywhere in between
Not sure? Call 07861 385433 — we'll tell you straight away.
Customer reviews
Loved by Essex homes
"Louie & Roy were amazing; they came and quoted my bathroom work, including a full system change from an old unvented system. They were true professionals from start to finish. I loved the father-and-son dynamic and how they both bring their own strengths to the project. They went above and beyond — little things like making sure I wasn't without a toilet whilst the work was ongoing meant a lot. I'd very happily recommend them to anyone who needs brilliant plumbers!"
A
Alex Moore
Google · Local Guide
"Roy and Louie were very knowledgeable and did a great job and got me out of a fix when my boiler broke down. Would highly recommend."
R
Russ Chapman
Google Review
"Roy is one of the best plumbers around. He knows his stuff, is polite, and also very clean. He takes pride in his work and has a customer-first approach. Will always go to Roy first in the future."
M
Michael Chapman
Facebook · Recommends
"I've used this company for myself, my son and my daughter and the service has been excellent. Roy is very friendly and helpful and works until the job is finished — none of this 'come back tomorrow' stuff. I thoroughly recommend you give them a try."
D
Daren Clark
Facebook · Recommends