East of England · Hertfordshire

Tradespeople Costs in Welwyn Garden City (2026)

Welwyn Garden City sits at 1.15× the UK average for trade work — above the national benchmark. Below you'll find current prices for every major trade across Welwyn Garden City, covering postcodes AL7, AL8.

1.15×vs UK avg
46kPopulation
54Services priced

Heating & Boilers in Welwyn Garden City

Boiler Replacement £2,070 – £4,025 per boiler installed Boiler Service £90 – £175 per annual service Underfloor Heating Installation £85 – £230 per m² Radiator Replacement £175 – £520 per radiator Power Flush £460 – £1,035 per system Air Source Heat Pump Installation £9,200 – £18,400 per system installed Gas Safety Certificate (CP12) £70 – £140 per certificate Smart Thermostat Installation £175 – £460 per thermostat Full Central Heating Installation £4,025 – £9,200 per system Immersion Heater Replacement £205 – £435 per element Hot Water Cylinder Replacement £1,035 – £2,530 per cylinder Gas Fire Installation £460 – £1,380 per fire Chimney Sweep £65 – £140 per chimney Wood Burner Installation £2,070 – £5,175 per stove Oil Boiler Installation £2,875 – £6,325 per boiler

Electrical in Welwyn Garden City

EV Charger Installation £920 – £1,840 per charge point Consumer Unit (Fuse Box) Replacement £520 – £1,035 per unit Full House Rewire £4,025 – £10,350 per property Electrical Installation Condition Report (EICR) £145 – £345 per property Light Fitting Installation £70 – £230 per fitting Downlight/Spotlight Installation £45 – £90 per spotlight Double Socket Installation £80 – £205 per socket Electric Shower Installation £290 – £635 per shower unit

Plumbing in Welwyn Garden City

Bathroom Installation £5,175 – £13,800 per bathroom Kitchen Tap Replacement £90 – £230 per tap Toilet Installation £230 – £635 per toilet Blocked Drain Clearance £90 – £290 per callout Water Leak Repair £105 – £400 per leak Water Softener Installation £520 – £1,380 per unit CCTV Drain Survey £175 – £460 per survey

Building & Construction in Welwyn Garden City

Kitchen Installation £7,475 – £23,000 per kitchen Loft Conversion £34,500 – £86,250 per conversion Single Storey Extension £2,070 – £3,680 per m² Plastering (Per Room) £460 – £1,380 per room Wall & Floor Tiling £40 – £105 per m² Flooring Installation £30 – £90 per m² Roof Replacement £5,750 – £16,100 per roof

Cleaning in Welwyn Garden City

End of Tenancy Clean £175 – £520 per property Carpet Cleaning £35 – £90 per room Oven Cleaning £65 – £150 per oven Window Cleaning £15 – £50 per visit Gutter Cleaning £80 – £205 per property

Landscaping & Gardens in Welwyn Garden City

Garden Landscaping £4,025 – £17,250 per garden Patio Installation £90 – £255 per m² Decking Installation £140 – £320 per m² Garden Fence Installation £55 – £150 per metre Tree Surgery / Removal £230 – £1,725 per tree

Pest Control in Welwyn Garden City

Rat Infestation Treatment £140 – £400 per treatment course Mice Pest Control £115 – £320 per treatment course Wasp Nest Removal £70 – £175 per nest Bed Bug Treatment £205 – £805 per property

Locksmiths in Welwyn Garden City

Lock Replacement £105 – £290 per lock Emergency Lockout Service £80 – £255 per callout uPVC Door Lock Mechanism Repair £160 – £370 per door