Choosing the right boiler installer is one of the most important decisions a homeowner can make. A new boiler is a significant investment, and the quality of the installation directly affects efficiency, reliability, safety, and long-term running costs. Whether you’re replacing an ageing system, upgrading to a more energy-efficient boiler, or installing central heating in a new property, working with a reputable boiler installer can save you thousands of pounds over the lifespan of your heating system.
Wiltshire is home to many experienced heating engineers and boiler specialists, ranging from independent Gas Safe registered installers to larger regional heating companies. The best installers offer more than just boiler fitting—they provide expert advice, manufacturer-backed warranties, ongoing maintenance, emergency repairs, and excellent customer service.
In this guide, we examine some of the leading boiler installers serving Wiltshire and explain what homeowners should look for when comparing heating companies.
What Makes a Great Boiler Installer?
Before looking at specific companies, it’s worth understanding the qualities that separate exceptional installers from average ones.
Gas Safe Registration
Every company carrying out gas boiler installations in the UK must be registered with the Gas Safe Register. This ensures engineers are properly qualified and legally permitted to work on gas appliances. Working with a Gas Safe engineer helps protect your household from risks such as carbon monoxide leaks, gas escapes, and unsafe installations.
Manufacturer Accreditations
Many leading installers hold accreditation from major boiler manufacturers such as Worcester Bosch, Vaillant, Ideal, Baxi, and Glow-worm. Accredited installers often receive additional training and can provide extended warranties unavailable through non-accredited engineers.
Experience and Reputation
An installer with years of experience will have worked on a wide range of systems and property types. Customer reviews, recommendations, and local reputation can provide valuable insight into reliability and workmanship.
Aftercare and Servicing
The best boiler companies offer annual servicing, maintenance plans, and repair services after installation. This ensures your boiler continues operating efficiently and helps maintain warranty coverage.
Top Boiler Installers in Wiltshire
1. Just Heating Ltd
Based near Malmesbury, this company has built a strong reputation across North Wiltshire. With a substantial number of customer reviews and consistently positive feedback, they are one of the most recognised heating specialists in the county. Their focus on domestic heating systems makes them particularly attractive for homeowners seeking boiler replacements, servicing, and energy-efficient upgrades.
Why Choose Them?
- Extensive experience with domestic heating systems
- Strong local reputation
- High volume of positive customer feedback
- Comprehensive installation and maintenance services
They are particularly well suited for homeowners seeking a trusted local company with proven customer satisfaction.
2. SGS Heating and Electrical Ltd
Serving Salisbury and surrounding areas, this company is one of the larger heating providers operating in Wiltshire. Their substantial customer base and broad service offering make them a strong choice for both residential and commercial installations.
Key Benefits
- Large, established team
- Extensive customer review history
- Emergency support availability
- Heating, plumbing, and electrical expertise
Homeowners looking for a company with significant resources and broad technical capability often consider them a reliable option.
3. Lucas and Sons – Heating – Air Conditioning – Plumbing – Electrical
Operating throughout Wiltshire, Bath, and surrounding areas, Lucas and Sons offers boiler installation, repairs, servicing, air conditioning, and plumbing services. The company highlights over 100 years of combined team experience and operates as a Gas Safe Registered and Worcester Accredited Installer.
What Stands Out?
- Worcester Accredited Installer status
- Extensive experience
- Gas and LPG boiler installations
- Broad home services offering
For homeowners seeking a company capable of handling multiple aspects of property maintenance, Lucas and Sons provides a comprehensive solution.
4. Truheat Heating and Plumbing Ltd
Based in Melksham, Truheat has developed a strong reputation for boiler installations, repairs, and plumbing services. Their high customer review count suggests consistent service quality and reliability.
Ideal For
- Boiler replacements
- Central heating upgrades
- Ongoing maintenance plans
- Local Wiltshire homeowners
Their balance of experience and customer satisfaction makes them a strong contender for residential heating projects.
5. John Williams Heating Services
Serving Chippenham and surrounding areas, John Williams Heating Services has become a well-known name in Wiltshire heating services. With strong customer reviews and a focus on heating expertise, they offer a dependable option for homeowners seeking quality installations.
Highlights
- Dedicated heating specialists
- Strong customer feedback
- Experienced installation team
- Long-standing local presence
Their focus on heating systems rather than general trade services appeals to homeowners wanting specialist expertise.
6. Russell Whatley Heating Services ltd
Located in Trowbridge, this company has earned a strong reputation through customer recommendations and positive reviews. Their service area covers much of central Wiltshire, making them accessible to many homeowners across the county.
Why Homeowners Like Them
- Excellent customer satisfaction
- Responsive service
- Local expertise
- Boiler installation and repair services
For homeowners prioritising customer service and communication, they represent a compelling choice.
7. J G S Heating Engineers
Based in Swindon, JGS Heating Engineers serves customers throughout North Wiltshire. Their strong review profile and specialist heating expertise have helped establish them as a trusted local installer.
Best For
- Worcester Bosch installations
- Heating system upgrades
- Boiler servicing contracts
- Domestic heating projects
Their combination of experience and specialist knowledge appeals to homeowners seeking long-term heating solutions.
8. Ultra-Warm Ltd
Ultra-Warm has been providing heating and plumbing services for over fifty years and is both Gas Safe and OFTEC registered. The company offers installations, servicing, repairs, underfloor heating, and renewable heating technologies. They are also a Worcester Accredited Installer and can offer extended warranties on selected boilers.
Strengths
- More than 50 years of experience
- Gas, oil, and LPG expertise
- Worcester Bosch accreditation
- Commercial and domestic capabilities
Their longevity in the market demonstrates a proven track record of customer service and technical expertise.
9. Optimised Heating
Optimised Heating serves Bath, Somerset, and Wiltshire, providing installations, servicing, repairs, and gas safety services. The company is Gas Safe registered and works with leading manufacturers including Worcester Bosch, Vaillant, and Baxi.
Why Consider Them?
- Gas Safe registered engineers
- Manufacturer-approved installer status
- Strong emphasis on customer service
- Extended warranty options
Their manufacturer relationships make them a strong choice for homeowners seeking premium boiler brands.
10. GasTech Heating & Plumbing
Covering Wiltshire, Dorset, and Somerset, GasTech Heating & Plumbing specialises in boiler installations, servicing, repairs, and heating system upgrades. The company holds accreditation with several leading manufacturers, including Worcester Bosch, Ideal, Baxi, Glow-worm, and Vaillant.
Key Advantages
- Multiple manufacturer accreditations
- Boiler installation specialists
- Extended warranty availability
- Comprehensive heating services
Homeowners seeking flexibility in boiler brand selection may find GasTech particularly appealing.
How Much Does a New Boiler Installation Cost in Wiltshire?
While prices vary based on property size, boiler type, and installation complexity, homeowners can generally expect:
| Installation Type | Typical Cost Range |
|---|---|
| Combi Boiler Replacement | £2,000–£3,500 |
| System Boiler Installation | £2,500–£4,500 |
| Conventional Boiler Replacement | £2,500–£5,000 |
| Full Heating System Upgrade | £4,000–£8,000+ |
Costs can increase if pipework modifications, new radiators, or system flushing are required.
Obtaining quotes from multiple installers is recommended to ensure competitive pricing and to compare warranty options.
Questions to Ask Before Hiring a Boiler Installer
Before signing any contract, homeowners should ask:
- Are you Gas Safe registered?
- Which boiler brands do you recommend and why?
- What warranty is included?
- Is system flushing included in the quotation?
- What aftercare support do you provide?
- Are annual servicing plans available?
- Can you provide references or customer reviews?
These questions help ensure you’re comparing installers fairly and understanding the true value of each quotation.
Boiler Brands Commonly Recommended in Wiltshire
Many of Wiltshire’s leading installers are accredited by major manufacturers. Popular brands include:
- Worcester Bosch
- Vaillant
- Ideal
- Baxi
- Glow-worm
Many accredited installers can offer extended warranties ranging from 7 to 12 years depending on the model selected.
Final Thoughts
Wiltshire benefits from a wide selection of highly regarded boiler installers, ranging from long-established regional firms to specialist local heating engineers. Companies such as Just Heating Ltd, SGS Heating and Electrical Ltd, Lucas and Sons – Heating – Air Conditioning – Plumbing – Electrical, Truheat Heating and Plumbing Ltd and John Williams Heating Services all offer strong credentials, positive customer feedback, and comprehensive heating services.
When selecting an installer, focus on Gas Safe registration, manufacturer accreditation, customer reviews, warranty length, and ongoing support rather than choosing solely on price. A quality installation carried out by an experienced engineer can improve efficiency, reduce energy bills, and provide peace of mind for many years to come.
