How much does a new boiler installation cost?

A new boiler installation typically costs £2,000-£3,500 including the boiler, fitting, controls, and certification. Combi boilers are usually cheaper than system boilers. Worcester Bosch boilers come with up to 12 years warranty. We provide free quotes with no obligation.

How long does a boiler installation take?

A standard boiler replacement (like-for-like) takes 1 day. Converting to a different boiler type or relocating the boiler may take 2-3 days. We'll remove your old boiler, install the new one, update controls, flush the system, and commission it. You'll have hot water and heating the same day for simple replacements.

How often should I service my boiler?

Boilers should be serviced annually by a Gas Safe registered engineer. Regular servicing maintains efficiency, extends lifespan, keeps warranties valid, and ensures safe operation. Our annual boiler service includes safety checks, cleaning, and efficiency testing for £85.

What should I do if my boiler breaks down?

Check your thermostat settings and boiler pressure first (should be 1-1.5 bar). If the boiler still won't fire, call us for emergency boiler repair. We're available 24/7 and aim to reach you within 1-2 hours. Don't attempt to fix gas appliances yourself - always use a Gas Safe engineer.

Should I choose a combi, system, or conventional boiler?

Combi boilers are best for homes with 1-2 bathrooms, providing instant hot water without tanks. System boilers suit larger homes with multiple bathrooms, storing hot water in a cylinder. Conventional boilers are for homes with existing tanks and cylinders. We'll assess your home and recommend the best option during our free survey.

Do you offer boiler finance options?

Yes, we offer flexible payment plans for boiler installations through our finance partners. Spread the cost over 12-60 months with competitive interest rates. Subject to credit approval. Contact us for a personalized quote and finance options.

🔥 Gas Safe Registered Engineers

Boiler Installation, Repair & Servicing in North West London

Gas Safe Registered | Worcester Bosch Accredited | 24/7 Emergency Repairs

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Gas Safe Registered

Worcester Bosch Accredited

Up to 10-Year Warranty

4.9★ (1,750+ Reviews)

Expert Boiler Engineers Serving Harrow, Wembley & North West London

At OHM Building and Refurbishing Services, we specialize in all aspects of boiler services across North West London. As Gas Safe registered and accredited installers for Worcester Bosch, Vaillant, and Baxi, we provide professional boiler installation, repairs, and annual servicing for residential and commercial properties.

Whether you need a new energy-efficient combi boiler installation, emergency breakdown repairs, or annual boiler servicing to keep your heating system running smoothly, our experienced engineers deliver reliable solutions with industry-leading warranties. We work with all major boiler brands including Worcester Bosch, Vaillant, Baxi, Ideal, and Viessmann.

Our boiler installation service includes a comprehensive survey, removal of old boiler, installation of your new boiler with all controls, full system flush, and certification. All our installations come with manufacturer warranties of up to 10 years when combined with our annual servicing plans. We offer 24/7 emergency call-out for boiler breakdowns because we understand how critical heating and hot water are to your home or business.

Finance Available

Same-Day Installation

10-Year Warranties

Our Boiler Services

Complete boiler solutions for your home or business

Boiler Installation

New boiler installation with all major brands. Combi, system, and regular boilers. Up to 10-year manufacturer warranty included.

✓ Free home survey
✓ Same-day installation
✓ Old boiler removal included

Boiler Repairs

Fast boiler repairs for all makes and models. Experienced engineers with genuine spare parts. Same-day service available.

✓ All brands covered
✓ Genuine spare parts
✓ 12-month repair warranty

Annual Boiler Servicing

Regular boiler servicing to maintain efficiency and safety. Required for warranty validation. Gas Safe certification provided.

✓ Safety checks included
✓ Gas Safe certificate
✓ Maintenance plan discounts

Emergency Breakdown

24/7 emergency boiler repair service. No heating or hot water? We'll get you back up and running fast.

✓ 24/7 availability
✓ Rapid response
✓ Fixed call-out fee

Boiler Upgrades

Upgrade to a modern energy-efficient boiler. Save up to 30% on energy bills. Finance options available.

✓ Energy-efficient models
✓ Smart controls included
✓ Finance available

Power Flushing

Central heating system power flushing to remove sludge and improve boiler efficiency. Extends boiler life.

✓ Improves efficiency
✓ Reduces noise
✓ Extends boiler life

Boiler Brands We Install & Service

We're accredited installers for leading boiler manufacturers

Worcester Bosch

✓ Accredited Installer

Vaillant

Baxi

Ideal

Viessmann

Potterton

Accredited Installer - Worcester Bosch, Vaillant & Baxi

As accredited installers for Worcester Bosch, Vaillant, and Baxi, we offer extended manufacturer warranties on new boiler installations per manufacturer terms. We install and service all major boiler brands with the same high standards of workmanship and customer care.

See Our Work in Action

Real projects, real results. See the transformations we've delivered for our clients across North West London.

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Why Choose OHM for Boiler Services?

Gas Safe Registered

All engineers fully Gas Safe registered and accredited installers for Worcester Bosch, Vaillant & Baxi.

5-10 Year Warranties

Extended manufacturer warranties (5-10 years depending on manufacturer) on new boiler installations with annual servicing plans.

Competitive Pricing

Fair prices with transparent quotes. Finance options available on new installations.

Expert Engineers

Over 20 years' experience with 1,750+ five-star reviews from satisfied customers.

Frequently Asked Questions

Get answers to common questions about our services

Still Have Questions?

Our team is here to help. Contact us for personalized advice and free quotes.

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Based on 1,750+ reviews

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