Boiler Installations
We install more than 150 boilers each year, with fixed quotes, correct sizing and Baxi or ATAG approved options.
Explore new boiler installation options →
Our Heating & Plumbing Services
Connected Gas & Heating provides boiler installations, repairs, emergency callouts, service plans, landlord gas safety certificates and wider heating services across County Durham and the North East. We are a family firm established in 1999 and operate under Gas Safe registration 186715.
- Boiler installation, repair and ongoing cover
- Emergency support seven days a week
- Landlord compliance and portfolio services
- Fixed prices explained before work begins
Boiler Services
Boilers: Installation, Repair and Cover
We support boilers through their full working life, from choosing and fitting a new appliance to diagnosing faults and arranging ongoing repair cover.
Boiler Repairs
We diagnose heating loss, pressure problems, leaks, fault codes, unusual noises and common boiler breakdowns.
Arrange diagnosis for a faulty boiler →Boiler Service Plans
Our plan costs £15 per month or £160 per year and includes covered repair parts, labour, callouts and no excess per claim.
Compare monthly and annual boiler cover →Urgent Support
Emergency and Same or Next-Day Help
Connected Gas & Heating takes emergency boiler calls seven days a week. We provide a same or next-day response across our service area, and it is rare that we cannot attend the same day.
Emergency Boiler Repair
Call when a boiler has completely stopped, left the property without essential heating or hot water, started leaking or locked out with a fault code.
If you smell gas or suspect a gas leak, call the National Gas Emergency Service on 0800 111 999 before arranging a boiler repair.
View seven-day emergency boiler assistanceRental Properties
Landlord and Rental Property Services
Landlords and letting agents can use one familiar firm for annual gas safety checks, heating repairs, plumbing support and work across multiple properties.
Landlord Gas Safety Certificates
We complete annual CP12 inspections of relevant gas appliances and flues for rented homes using Gas Safe registered engineers.
Read the annual CP12 compliance guidance →Landlord Plumbing & Heating
We support individual landlords, property portfolios and letting agents with coordinated repairs, servicing, compliance and installations.
See portfolio plumbing and heating support →Heating and Hot Water
Radiators, Underfloor Heating and Hot Water
We improve comfort throughout the home with correctly sized radiators, wet underfloor heating and professionally installed unvented hot-water cylinders.
Radiator Installation
We fit, replace and move radiators, advise on room output and balance the heating system for more even warmth.
Discover radiator fitting and replacement →Underfloor Heating
We install water-based underfloor heating linked to the wider heating system for comfortable, evenly distributed warmth.
Review wet underfloor heating installation →Unvented Cylinder Installation
We install and replace G3-compliant unvented cylinders for strong mains-pressure hot water without a traditional loft tank.
Understand G3 unvented cylinder systems →Why Connected Gas
Why Choose Connected Gas & Heating?
Connected Gas & Heating is a family-run firm established in 1999. Customers receive clear advice, fixed prices and experienced support from Gas Safe registered engineers.
Established Family Firm
We have served households, landlords and property professionals across the North East for more than 25 years.
Customers Supported
More than 3,000 customers have used our boiler, heating, plumbing and gas services.
Gas Safe Registered
Gas work is completed under Gas Safe registration number 186715.
Checkatrade Feedback
Connected Gas & Heating has a 10/10 Checkatrade score from 353 reviews and has been a member since March 2013.
We have been a Baxi Approved Installer for more than 15 years and are also ATAG approved. Fixed prices are agreed before chargeable work begins, with flexible payment options available.
Service Coverage
Areas We Cover Across the North East
Connected Gas & Heating is based in Castle Eden and prioritises Sunderland, Seaham, Houghton-le-Spring, Hartlepool and Durham.
Wider coverage includes Middlesbrough, Stockton, Billingham, Newcastle, Washington, Gateshead, South Tyneside and surrounding communities.
- DH1–DH6
- SR1–SR8
- TS1–TS8
- TS15–TS29
Common Questions
Questions About Our Heating and Plumbing Services
What services does Connected Gas & Heating offer?
We provide boiler installations, boiler repairs, emergency boiler repair, boiler service plans, landlord gas safety certificates, radiator installation, underfloor heating, unvented cylinder installation, and landlord plumbing and heating support.
Do you cover my area?
We prioritise Sunderland, Seaham, Houghton-le-Spring, Hartlepool and Durham. Wider coverage includes Middlesbrough, Stockton, Billingham, Newcastle, Washington, Gateshead, South Tyneside and surrounding areas.
Are your engineers Gas Safe registered?
Yes. Connected Gas & Heating operates under Gas Safe registration number 186715. Relevant gas work is completed by appropriately registered engineers.
Do you offer emergency boiler callouts?
Yes. We take emergency boiler calls seven days a week and provide a same or next-day response. It is rare that we cannot attend the same day.
Get in Touch
Tell Us Which Service You Need
Describe the boiler, heating, plumbing or landlord work required. We will review the details and help you choose the most suitable service.
- Gas Safe registered under number 186715
- Fixed prices explained before chargeable work
- Support for homeowners, landlords and agents
- Coverage across County Durham and the North East
Send a Service Enquiry
Include the property location, service required and any useful details about the current system.
Page last updated: 1 August 2026