Trade guide
How to Become a Chimney Liner Installer in the UK
Overview
Chimney liner installers fit flexible and rigid flue liners into chimneys to ensure the safe operation of wood burners, multi-fuel stoves, gas fires, and oil boilers. With the wood-burning stove market booming and building regulations tightening around chimney safety, properly qualified chimney liner installers are in strong demand. Many chimney sweeps and heating engineers add lining to their services, but dedicated liner installers with HETAS registration command the best rates.
Next steps
Turn this guide into a plan
Check current chimney liner installer jobs, set a weekly alert, or build the CV you will use to apply.
Step-by-Step Career Path
Understand the Industry
Chimney lining involves installing flexible stainless steel or rigid flue liners, insulating them, and connecting appliances safely. It's closely linked to stove installation, chimney sweeping, and heating services.
Get HETAS Training
HETAS (Heating Equipment Testing and Approval Scheme) is the main registration body. Complete their chimney lining course (2-4 days) covering liner selection, installation methods, insulation, and building regulations compliance.
Register with HETAS
HETAS registration allows you to self-certify installations under Building Regulations (Document J). This means customers don't need separate building control approval, making you more competitive.
Learn Stove Installation
Most chimney liner work is connected to wood burner and multi-fuel stove installations. HETAS stove installation courses (H003/H004) significantly expand your service offering and revenue.
Get Business Essentials
Public liability insurance, a suitable vehicle (for carrying 10m+ liner coils), and basic chimney access equipment. Many installers also train as chimney sweeps for a complete service.
Build Your Business
Market to homeowners, stove retailers, and builders. Offer a complete package: survey, liner installation, stove fitting, and commissioning. Autumn is peak season as homeowners prepare for winter.
Qualifications Needed
- ✓HETAS Chimney Lining Course
- ✓HETAS Registration (self-certification rights)
- ✓HETAS H003/H004 Stove Installation (recommended)
- ✓Building Regulations Document J knowledge
- ✓Working at Height Training
- ✓Public Liability Insurance
Pros & Cons
Pros
- Quick to qualify — days not years
- Strong seasonal demand (autumn/winter)
- High per-job earnings (£500-£1,500+ per install)
- Can combine with stove fitting and sweeping
- Self-certification status speeds up work
- Growing market as stove popularity increases
Cons
- Seasonal — quieter in summer months
- Working at height on rooftops
- Dusty, dirty work in chimneys
- Physical — hauling liners up through flues
- Need a suitable vehicle for long liner coils
- Building regulations are strict and changing
Frequently Asked Questions
How much do chimney liner installers earn?▼
Individual installations earn £500-£1,500 depending on complexity and liner type. Full-time installers earn £30,000-£45,000 during the season (September-March). Combined with stove installation, annual earnings of £40,000-£55,000 are achievable.
Do I need HETAS registration?▼
It's not legally required, but without it your customers must apply for building control approval separately (costing them £200-£400). HETAS registration lets you self-certify, making you far more competitive.
What types of chimney liner are there?▼
Flexible stainless steel liners (most common for domestic work), rigid twin-wall flue systems, and pumice/clay liners. Flexible liners come in 904 and 316 grade stainless steel — 904 is required for solid fuel appliances.
Can I combine chimney lining with other work?▼
Absolutely. Most successful installers offer stove fitting, chimney sweeping, and fireplace installation as a complete package. This gives you year-round income and higher average job values.
How long does a chimney liner installation take?▼
A straightforward liner installation takes 3-5 hours. Complex installations (offsets, insulation, connecting to new stoves) can take a full day. Most installers complete 1-2 installations per day.
More chimney liner installer guides to compare
Good next reads if you want to compare routes, pay, training or live jobs before deciding.
Salary guide
Gas Engineer Salary UK: Pay, Day Rates & Earnings in 2026
Gas engineer salary UK guide using the official £25,000 to £45,000 career range, with Gas Safe, experience, self-employed costs and live job context.
Read guide →Career guide
How to Become a Conservatory Installer in the UK
A practical guide to becoming a conservatory installer in the UK. FENSA registration, training, salary guide, and career paths for 2026.
Read guide →Career guide
How to Become a Plumber in the UK
A practical guide to becoming a plumber in the UK. From training to Gas Safe registration, salary expectations, and career paths for 2026.
Read guide →Results alert
Get chimney liner installer jobs every Monday.
One email a week. We never sell or share your email. Unsubscribe in one click.
Ready to Start?
Browse live chimney liner installer jobs and take the first step today.