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LEEWAYBROTHERS
Professional Windows & Doors

Windows & Doors in Hertfordshire

Upgrade your home's comfort, security, and kerb appeal with professionally installed windows and doors. From energy-efficient double glazing and aluminium bi-fold doors to composite front doors and sash window restoration, we supply and fit the full range of window and door solutions.

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Since 2015Gas Safe RegisteredNICEIC CertifiedFree QuotesAll Work Guaranteed
What We Offer

Our Windows & Doors

We offer a comprehensive range of windows & doors to homeowners across Hertfordshire and North London.

Double & Triple Glazing

Energy-efficient uPVC and aluminium windows in casement, tilt & turn, and flush styles. A-rated as standard.

Bi-Fold & Sliding Doors

Aluminium bi-fold doors in 2–6 panel configurations, plus sliding patio doors for seamless indoor-outdoor living.

Composite Front Doors

Secure, insulated composite doors in a wide range of styles and colours. Multi-point locking for maximum security.

Sash Window Restoration

Specialist restoration of original timber sash windows including draught-proofing, re-glazing, and rebalancing.

French Doors

Classic French doors in uPVC, timber, or aluminium for elegant access to your garden or patio.

Why Us

Why Choose Leeway Brothers for Windows & Doors

Energy Efficient

A-rated glazing reduces heat loss by up to 80%, lowering your energy bills and keeping your home comfortable.

Enhanced Security

Multi-point locking systems, toughened glass, and reinforced frames for peace of mind.

Noise Reduction

Double and triple glazing significantly reduces outside noise, creating a quieter, more peaceful home.

FENSA Registered

All installations comply with Building Regulations and come with a FENSA certificate and 10-year insurance-backed guarantee.

How we work

Our Process

Windows & Doors from first phone call to handing you the keys, in 5 steps.

  1. 1

    Free Survey

    We measure all openings, discuss your requirements, and recommend the best products for your home and budget.

  2. 2

    Product Selection

    Choose from our range of styles, colours, and glass options. We provide samples so you can see the quality.

  3. 3

    Manufacturing

    Your windows and doors are manufactured to your exact specifications. Lead times are typically 4–6 weeks.

  4. 4

    Professional Installation

    Our experienced fitters remove old frames and install new units with minimal disruption. Most windows fitted in a day.

  5. Certification & Handover

    FENSA certificates issued, all mechanisms demonstrated, and your property left clean and tidy.

Seen enough?

Have a look at what we have built

All projects
Modern open plan kitchen and living room renovation in Ealing
Ealing

Open Plan Kitchen & Living Space

Luxury bathroom renovation with marble effect tiles in Harrow
Harrow

Marble Effect Bathroom Renovation

Garden pergola with decking and festoon lights in Hemel Hempstead
Hemel Hempstead

Garden Pergola & Entertaining Space

Often booked alongside windows & doors

Open-plan living and dining room created by a rear house extensionHouse Extensions+2 more services
Pricing guide

Windows & Doors Costs

Window and door costs depend on material, style, and size. Here are typical price ranges:

uPVC Window (standard)£400–£800
Aluminium Bi-Fold Doors (3 panel)£3,000–£5,000
Composite Front Door£1,200–£2,500
Full House (10 windows)£4,000–£8,000
Sash Window Restoration (each)£500–£1,200
£0£8k

Supply and fit prices. Exact costs depend on sizes, specifications, and access. Free surveys provided.

Service areas

Windows & Doors across Hertfordshire & London

Every town below is one we have actually worked in. Tap through to see the job and what we cover locally.

Garden pergola with decking and festoon lights in Hemel Hempstead
Our work here

Hemel Hempstead

Garden Pergola & Entertaining Space

Loft bedroom conversion with fitted wardrobes in Watford
Our work here

Watford

Loft Bedroom with Fitted Storage

Navy blue shaker kitchen with Belfast sink in St Albans
Our work here

St Albans

Navy Shaker Kitchen with Belfast Sink

Luxury bathroom renovation with marble effect tiles in Harrow
Our work here

Harrow

Marble Effect Bathroom Renovation

Modern floating staircase with oak and steel in Barnet
Our work here

Barnet

Modern Floating Staircase

Covered outdoor dining area and patio in Berkhamsted
Our work here

Berkhamsted

Covered Outdoor Dining Area

See every area we cover
Common Questions

Frequently Asked Questions

Common questions about our windows & doors.

How long does it take to replace windows?
Most homes can be fully fitted in 1–2 days. Each standard window takes approximately 1–2 hours to remove and replace.
Do I need planning permission?
Like-for-like replacements don't need planning permission. Changes to window style or size in listed buildings or conservation areas may require approval.
What guarantee do you offer?
All installations come with a 10-year insurance-backed guarantee via FENSA, plus manufacturer warranties on the products themselves.

Ready to Start Your Windows & Doors Project?

Get a free, no-obligation quote for windows & doors in Hertfordshire & London. Our qualified team is ready to help with your project.

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