Preferred
Vaillant
Best overall if you want strong reliability, good controls, and long-term value.
Boiler installs
Replacement boilers planned properly and fitted neatly.
For homeowners and builders who want the right boiler for the property, a clear quote route, and tidy installation from first enquiry through to handover.
Gas Safe Registered • 2-year workmanship guarantee • Vaillant preferred
Survey or photo reviewHomeowners and buildersVaillant preferred route
This page is for you if
You want the install route checked properly before the final quote.
This suits homeowners and builders who want the boiler, the setup, and the next step handled clearly from the start.
- You are replacing an older or unreliable boiler.
- You want better hot water performance or a cleaner setup.
- You need the quote shaped around the property, not a price list.
- You can send photos or book a survey if the job needs checking.
What matters here is getting the route right early.
The recommendation, survey decision, and final quote all work better when the current setup is clear from the start.
Boiler routes
Boiler brands, in plain English.
Vaillant is the preferred route when you want the strongest all-round option. Glow-worm is a solid mid-range choice. Navien and Main are there for more budget-led jobs.
Mid-range
Glow-worm
A solid mid-range choice when you want dependable performance without stepping into the top end of the budget.
Budget option
Navien / Main
A budget-led option for straightforward jobs where keeping the upfront spend under control is the main brief.
What is included
Every install starts with the job, not just the appliance.
We look at the current setup, the property, hot water demand, and whether photos or a survey are needed before the final quote is confirmed.
- Clear boiler advice matched to the home and the brief.
- Survey or photo review before final pricing where needed.
- Neat installation with attention to the finish.
- Proper handover and aftercare routes if useful afterwards.
How it moves forward
Straightforward from first enquiry to handover.
The process is there to keep the next step obvious, not to slow the job down.
1. Share the current setupStart with the boiler quote or send photos on WhatsApp so we can see what the property is working with now.
2. Check the right boiler routeWe shape the recommendation around the house, hot water demand, and the kind of install route the job needs.
3. Confirm survey or final quoteIf the job needs checking in person, we move into survey. If the details are already clear, we move into the final quote route.
4. Install and handoverOnce agreed, the install is carried out neatly and handed over properly, with aftercare available afterwards if useful.
FAQs
Boiler install questions
How do boiler installs start?
Most installs start with the boiler quote or a WhatsApp message with photos. From there, SJM Heating can confirm whether the next step is a photo check, survey, or formal quote.
Do you help choose the right boiler?
Yes. Boiler recommendations are handled around the property and your priorities, with Vaillant preferred, Glow-worm as a strong mid-range option, and Navien or Main where budget is the main driver.
What reassurance do I get?
SJM Heating is Gas Safe Registered, all work is guaranteed for 2 years, and boilers carry longer manufacturer warranties where applicable.
Ready to move forward?
Thinking about replacing your boiler?
Start the quote if you are ready, or send boiler photos on WhatsApp if that is the quickest way to show the current setup.