Why choose us
Three Generations. One Family-Run Boiler Company.
It Started With a 16-Year-Old and a Toolbox
We believe a new boiler should be recommended after a proper survey — not selected by an algorithm in 90 seconds. That means honest, impartial advice, clear fixed prices and no pressure to spend more than you need.
“If you don’t need to spend more, we’ll tell you.”
Three Generations Working Together to Provide a Personal, Dependable Service
Len Wheeler Senior
Logistics & Supply Chain
Coordinates materials, deliveries and suppliers, helping ensure every installation has the right equipment in the right place at the right time.
Len Wheeler
Managing Director & Surveyor
With 30 years’ experience in the heating industry, Len carries out our home surveys, provides honest and impartial advice, and oversees every project from quotation to completion.
Jessie Wheeler
Advertising & Social Media
Supports our advertising and social media, helping customers get to know the people and family values behind Next Level Boilers.
Lenka Wheeler
Accounts & Administration
Looks after the accounts and administration, helping keep the family business organised behind the scenes.
A Personal Service, Professionally Delivered
From survey to handover, your installation is managed by our family-run team and completed by experienced Gas Safe registered engineers we know and trust.
Registered, Reviewed and Accountable
Gas Safe Registered
Qualified and registered.
TrustATrader Member
Vetted and backed by verified customer reviews.
Finance Available
Flexible payment options available, subject to status.
Up to 10-Year Manufacturer Warranty
Manufacturer-backed warranties available on selected boilers.
- OUR PROMISES
Straightforward Promises, Backed by £200
Fixed Price Before We Start
Once the work has been surveyed and agreed, the price is fixed. It will only change if you ask us to change the work.
£100 Clean and Tidy Promise
If we don’t leave the working area clean and tidy and remove the installation waste, we’ll pay you £100.
£100 Installation Day Promise
If we fail to attend on the agreed installation date without giving you prior notice, we’ll pay you £100.
- Independent proof
Google, Trustpilot and Yell
250+ five-star reviews from homeowners.
Trustpilot
Read independent Trustpilot reviews below.
Yell
Listed and reviewed on Yell as well as Google and Trustpilot.
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- TrustATrader
Full TrustATrader profile
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- CUSTOMER STORIES
Real Customers. Real Experiences.
“Len talked us out of the most expensive boiler. The quote did not move and the kitchen was left cleaner than he found it.”
Sarah J., Watford
“No hard sell. The conversion was seamless and the house is so much warmer.”
David T., Chelmsford
“Honest advice, tidy work and they registered the warranty before they left. We would use them again.”
Margaret & John, Enfield
Steve
Chantel
Danny
- Aftercare
Support after the van leaves
- Full commissioning and safety checks
- Boiler controls clearly explained
- Manufacturer warranty registered for you
- Support available after installation