Oil Boiler Installation
OFTEC-registered oil boiler installation. All major UK brands. Free on-site survey. Fixed price before work starts. Manufacturer warranty registered on completion.
Oil boiler installation pricing — 2026
Standard call-out and travel included. Prices exclusive of VAT. Quoted after free site survey — asterisk reflects site-condition variability.
Call-out fee
FREE
Travel always included
All prices exclusive of VAT. Ranges reflect typical jobs. Final price quoted before any work begins.
How we work
Five steps. No surprises. No pressure.
Call or book
Phone answered within 20 minutes. Free quote form.
Engineer arrives
Gas Safe engineer on site within 2 hours.
Free diagnosis
We check, explain, and quote a fixed price.
Work done
Most jobs completed first visit — common parts on the van.
Guaranteed
1-year parts guarantee on everything we fit.
Oil boiler installation FAQs
How much does a new oil boiler cost installed?
£2,500 to £5,000+ plus VAT depending on boiler brand, output, location (internal vs external housing), and the condition of your existing system. We quote a fixed price after a free site survey.
What brands do you install?
Worcester Bosch Greenstar Heatslave, Grant Vortex, Firebird, Warmflow, Mistral, HRM, Trianco, Eco-Hometec and others. We can advise on the best fit for your property and budget.
How long does it take?
A like-for-like oil boiler swap is typically 1 day. A full system conversion (e.g. relocating the boiler, fitting a new oil tank) can take 2-3 days. Confirmed in the quote.
Do you also install oil tanks?
Yes — we install and relocate oil storage tanks including bunded plastic tanks and steel tanks. Regulations require specific clearances from the property and boundaries — we handle compliance.
What warranty comes with a new oil boiler?
Most oil boilers come with a 2-7 year manufacturer warranty (varies by brand and model) provided they are professionally installed by an OFTEC-registered engineer and serviced annually. We register the warranty as part of the install.
Are you OFTEC registered?
Yes — OFTEC is the governing body for oil heating. Installation by an OFTEC-registered engineer is required for warranty compliance and for the building regulations compliance certificate.
Could the final price be more than the quoted range?
Oil boiler installation pricing is subject to site conditions (see asterisk). Pricing depends on the condition of the existing system. Pipework upgrades, system alterations, or safety improvements are quoted separately before proceeding. Any additional work is clearly explained, separately quoted, and approved by you before it starts.
Ready for a new oil boiler?
Engineer on site within 2 hours. Phone answered within 20 minutes. No call-out fee.