What to Ask a Fireplace Installer

Because It's More Than Just a Bit of Brickwork

So, you’ve decided to get a fireplace — lovely choice. It’s not just a heat source, is it? It’s a centrepiece. A mood-maker. A spot where tea tastes better and socks somehow feel fluffier. But before you get swept away by flame styles and mantel options, there’s one very practical step you can’t skip: choosing the right installer.

This person (or team) is going to knock into your walls, fiddle with gas lines or electrics, and install a potentially fire-breathing box in your home. You’d want to ask a few questions first, right?

Exactly. So here’s your guide to what to ask a fireplace installer before you let them light anything at all.

1. Are You Certified and Insured?

Let’s start with the boring-but-crucial stuff. Fireplace installation is skilled work, and it comes with real risks — especially with gas or solid fuel systems. You’ll want someone who knows exactly what they’re doing.

• For gas fireplaces, ask if they’re registered with the Gas Safe Register (in the UK, this is non-negotiable)
• For solid fuel or wood-burning stoves, check for HETAS registration
• Electric fireplaces may not need the same level of certification, but a Part P registered electrician is a smart move if electrical work is involved
• Public liability insurance — always. If they damage your property (or worse), you’ll be glad they’re covered

If someone shrugs off this question or gets defensive? That’s your sign to politely (or not-so-politely) show them the door.

2. Can You Show Me Photos of Previous Work?

Would you eat at a restaurant with no reviews? Exactly. You’re not being fussy — you’re being sensible. Ask for photos of fireplaces they’ve installed before. Bonus points if they’ve done projects similar to yours in size, layout, or style.

• Look for clean finishes, neat wiring or pipework, and a fireplace that looks like it belongs
• Don’t be afraid to ask for references or reviews
• If they’ve done something creative, ask how they came up with it — great installers often take pride in their ideas

You're trusting them to make something beautiful and safe — it’s only fair they show their track record.

3. Do You Handle the Ventilation or Flue Work?

This one’s a biggie. A fireplace without proper ventilation is like a car without brakes — looks great until it goes wrong.

• Wood and gas fireplaces need a flue or chimney — either existing or newly installed
• Electric fireplaces don’t — but they still need airflow for the room
• Ask whether they assess airflow, draughts, and compliance with building regulations

Some installers subcontract this bit, which isn’t a deal-breaker — just make sure you know who’s doing what. And that someone is taking full responsibility for safety.

4. Will You Help Me Choose the Right Fireplace?

Not every installer will offer design help, but some do — and their practical experience can be gold.

• Ask which styles work best for your room size and insulation level
• Check if they’ll help match fuel types to your lifestyle (do you really want to stack logs every day?)
• See if they’ve worked with smart fireplace tech — and if they can integrate it with your home system

Even if they don’t offer full-on design services, a good installer should flag red flags. Like “that insert’s too small for your room” or “that ventless unit won’t meet local code.”

5. What’s Included in the Quote?

We all know how this goes — you agree on one price, and suddenly there’s a ‘chimney liner upgrade’ or a ‘vent adjustment surcharge’ and you’re £400 deeper than expected.

Nip that in the bud by asking up front:

• Is site prep included? (e.g. clearing the old fireplace or debris)
• Does it include flue work, gas lines or wiring?
• Are finishing materials (like wall panels or plaster) part of the quote?
• What about post-install cleanup?

If it’s vague, ask for a breakdown in writing. Not because you’re suspicious — just because clarity avoids awkwardness later.

6. What Maintenance Will This Fireplace Need?

This isn’t just a “future you” problem — it’s something to think about now. Maintenance needs vary hugely depending on fuel type and system design.

• Gas systems need annual servicing (usually by the installer or someone Gas Safe)
• Wood stoves need regular chimney sweeping and ash clearance
• Electric models are low-fuss but may need occasional bulb or fan replacements

A good installer won’t just fit it and disappear. They’ll walk you through how to keep it running well — and warn you what to look out for.