Updated September 2025
7 Best Companies in Hertfordshire for Boiler Repairs and Installation
Looking for boiler repairs and installation in Hertfordshire? We’ve rounded up the 7 best-rated local heating companies that homeowners trust for boiler repairs, servicing, and new central heating installations. This list is based on price, reviews, reliability, and reputation, so you can make an informed choice when your heating system needs attention.
Table of Contents
1. Domestic Heating Group Boiler Installation Hertfordshire | Central Heating Services
Domestic Heating Group is one of the most trusted names in Hertfordshire for full boiler installations, heating repairs, and central heating upgrades. They’re known for combining affordable pricing with top-quality workmanship and a personal, customer-first approach.
Pros:
Specialists in boiler installations across Hertfordshire
Competitive pricing with flexible finance options
5-star Google reviews for customer service
Fast call-out response times
Fully Gas Safe registered team
Cons:
Focuses mainly on Hertfordshire (not ideal if you’re outside the county)
Additional Benefits & Features:
Comprehensive services – from new boiler installs to urgent repairs, annual servicing, power flushing, and central heating upgrades.
Energy efficiency experts – offering guidance on choosing A-rated boilers and smart controls to lower energy bills.
Flexible payment plans – finance options available to spread the cost of a new boiler installation.
Trusted brands – works with leading manufacturers including Worcester Bosch, Vaillant, and Ideal.
Landlord services – provides Gas Safety Certificates (CP12s) for rental properties in Hertfordshire.
Emergency response – rapid call-out service for boiler breakdowns, especially during peak winter.
Customer-first approach – clear communication, no hidden costs, and free no-obligation quotes.
Unique fact: Domestic Heating Group has over 20 years’ experience and is a Gas Safe registered installer serving both domestic and commercial clients.
👉 Contact Domestic Heating Group for boiler repairs and installation in Hertfordshire
2. Herts Boilers Ltd
Herts Boilers Ltd provides reliable boiler servicing, repairs, and replacements across Stevenage, Hitchin, and Letchworth.
Pros:
Emergency call-outs available 24/7
Works with leading brands like Worcester Bosch and Vaillant
Transparent fixed-pricing
Cons:
Smaller team, so limited availability during peak winter months
Unique fact: Rated 4.9/5 on Trustpilot with over 250 customer reviews.
👉 Book a repair with Herts Boilers Ltd
3. Heatwise St Albans
Based in St Albans, Heatwise offers heating system repairs, annual servicing, and boiler installations.
Pros:
Free quotes on new installations
Experienced with energy-efficient systems
Family-run business with strong community reputation
Cons:
Coverage is mostly limited to St Albans and nearby towns
Unique fact: Won the St Albans Business Excellence Award 2023 for customer service.
👉 Heatwise
4. Hertford Heating & Plumbing
Hertford Heating & Plumbing is a well-established company known for quick turnaround times and fair pricing.
Pros:
Same-day boiler repair appointments
Offers full central heating system upgrades
Gas Safe registered
Cons:
Website could provide clearer pricing info
Unique fact: Claimed 90% first-time repair success rate on boiler call-outs.
👉 Find out more about Hertford Heating & Plumbing
5. Boiler Doctor Hemel Hempstead
Boiler Doctor is a Hemel Hempstead-based heating service that covers all of Hertfordshire.
Pros:
Known for affordable maintenance packages
Works on both modern combi and traditional boilers
Provides annual service reminders
Cons:
Smaller service area compared to national brands
Unique fact: Over 1,000 boilers serviced annually, keeping Hertfordshire homes warm year-round.
👉 Boiler Doctor Hemel Hempstead
6. Watford Boiler Services
Watford Boiler Services specialises in fast-response boiler breakdowns and installations in and around Watford.
Pros:
24/7 emergency repairs available
Wide range of boiler brands supported
Good reputation for landlord certificates and safety checks
Cons:
Premium pricing for emergency work
Unique fact: Averaging 4.8/5 rating across Google and Yell reviews.
7. Bishop’s Stortford Heating Solutions
This company provides expert boiler installation and heating services to Bishop’s Stortford and East Hertfordshire.
Pros:
Focus on eco-friendly, energy-saving boiler solutions
Free energy-efficiency advice included with installs
Strong local reputation
Cons:
No emergency 24-hour service available
Unique fact: Approved installer of Vaillant ecoTEC boilers.
👉 Bishop’s Stortford Heating Solutions
FAQs on Boiler Repairs and Installation in Hertfordshire {#faqs}
How much does boiler installation cost in Hertfordshire?
A standard combi boiler installation usually costs between £1,800–£3,000, depending on the brand and complexity.
How often should I service my boiler?
Homeowners should service their boiler once a year to maintain efficiency, avoid breakdowns, and keep warranties valid.
Do all companies need to be Gas Safe registered?
Yes – in the UK, any company carrying out boiler installation or repair must be Gas Safe registered by law.
What is the average lifespan of a boiler?
With regular servicing, most boilers last 10–15 years before needing replacement.
💡 If you’re a homeowner in Hertfordshire searching for trusted boiler repairs, maintenance, and installation, this list gives you the top companies to compare. For reliability, experience, and great reviews, Domestic Heating Group comes out on top.
