Twin-wall systems, liners, pots, cowls, full rebuild of chimney stacks and re-pointing. Any failed chimneys or liners, we will diagnose and replace.
Flue replacement, chimney lining and full stack rebuilds across Hertfordshire and the home counties. HETAS-registered, free diagnosis, all systems carried.
Every job at Herts Chimney Services is surveyed, fitted and signed off by the same team. Nothing sub-contracted, no other trades wedged in to push the price up. Free quote, free survey, and we will happily beat any legitimate written quote you have already.
Full external or internal twin-wall flue runs for cottages and properties without a usable existing chimney.
316 and 904 grade stainless steel liners. We cap, insulate, register-plate and commission to leave it air-tight.
Smoking chimney, downdraught or failed sweep? We pressure test, inspect and tell you what it actually needs.
Anti-downdraught cowls, bird guards, terracotta pots and rain caps. All sizes, supplied and fitted.
A 904-grade liner installed properly will give you 20 to 25 years on a wood-burner. 316 grade is a more budget option, around 10 to 15 years.
Usually downdraught, an undersized flue, a partial blockage or a flue that has cooled too much. We will diagnose before quoting any work.
Yes. Twin-wall flue systems route up the side of a property or internally through floor and roof. Common in modern builds and bungalows.