Skip to product information
1 of 15

SKU:HarloW4D3UPVCW

Mercia

Mercia Sherwood Harlow 4mx3m Insulated Garden Room - (UPVC Windows & Doors) - White

Mercia Sherwood Harlow 4mx3m Insulated Garden Room - (UPVC Windows & Doors) - White

Regular price £11,525.00
Regular price Sale price £11,525.00
Sale Sold out
  • We accept major credit card providers including Mastercard, Visa, Discover and American Express as well as PayPal. See our footer menu for all payment methods.

The Harlow Insulated Garden Room with White UPVC is a sleek and modern outdoor extension perfect for home offices, gyms, or studios. Featuring durable white UPVC windows and doors, double glazing, and EcoQuilt insulation, it provides year-round comfort. Built in the UK with premium materials and a striking winged design, the Harlow combines functionality with contemporary style for your garden space. 

Key Features

  • White UPVC Doors & Windows – Modern look, low maintenance, weatherproof
  • Fully Insulated – EcoQuilt multi-foil insulation in walls, floor, and roof
  • Double-Glazed Units – Helps maintain interior temperature and reduce noise
  • Secure Design – UPVC locks and frames for added safety and airtight seal
  • All-Weather Roof – EPDM rubber membrane rated to last 50 years
  • Electrics-Ready – Removable interior panels for hidden cable runs
  • Customisable Layout – Add windows, move doors—tailored to your needs
  • UK Manufactured – Built by skilled craftsmen using sustainable timber 

Specifications 

Feature Details
Product Name Harlow Insulated Garden Room – White UPVC
Finish Options White, Oak, Anthracite, or Traditional Timber
Treatment Type Untreated (Preserve with wood treatment if required)
Installation Fully Fitted by Professional Team
Guarantee 10-Year Anti-Rot Guarantee
Cladding Shiplap+ Tongue & Groove
Wall Thickness 72mm Double Skinned with EcoQuilt Insulation
Roof Material OSB & 12mm Tongue & Groove
Roof Covering EPDM Rubber Membrane (50-Year Lifespan)
Floor Material 16mm Tongue & Groove with insulation
Door Style Double French Doors – White UPVC, Double Glazed
Window Style White UPVC, Double Glazed
Variants Available 3x4m, 4x3m, 4x4m, 5x3m, 5x4m, 6x3m, 6x4m
Manufactured In United Kingdom
Timber Source FSC-Certified, Sustainably Sourced
Ideal Use Office, Gym, Studio, Lounge, Hobby Room

Customer Reviews

Be the first to write a review
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
View full details