House Extension

House Extension Builders London | Trusted Home Extension Experts

A house extension helps families gain more space without moving home. As house extension builders London, the aim stays simple and clear. Each house extension adds space for daily life and future needs. Rooms feel brighter, wider, and easier to use. Work stays neat and planned. Local rules and safety steps are always followed to keep homes protected.
At OnFlow Ltd, trusted house extension builders London keep every step easy to understand. Plans remain clear, costs stay open, and progress moves steadily. A house extension should feel calm, helpful, and well-managed. The final space blends naturally with the home and supports everyday living.

250+ Projects Completed

15+ Years Experience

98% Client Satisfaction

Types of House Extensions We Build

Our home extension services cover many extension types. Each option adds space, comfort, and value. Families choose designs that fit daily life while keeping homes simple, balanced, and easy to use.

Rear House Extension

A house extension adds space at the back of the home. Families use it for living or dining areas. The front of the house stays the same and looks neat.

Single Storey Extension

House Extensions in London often include single-storey builds. This type adds space on one level only. Homes feel wider, calmer, and easy to move around.

Double Storey Extension

House Extension Specialists in London build double-storey extensions for growing families. This adds rooms on two floors. Homes gain bedrooms, bathrooms, and a better balance.

Kitchen Extension

Our home extension services help create larger kitchens for daily life. Families enjoy more cooking space and seating. The kitchen feels brighter and easier to use.

Loft Extension

Home builders turn roof space into useful rooms. A loft extension works well for bedrooms or work areas. This adds space without using the garden.

Garage Extension

A house extension company can change garage space into a room. This uses space already there. Homes gain comfort without major layout changes.

Trusted House Extension Builders in London

Trusted house extension builders London help families gain more room without moving home. Each house extension is planned in a clear and simple way. Rooms feel brighter and easier to use every day. Work stays clean, safe, and well planned. Steps are easy to follow, which helps families feel calm during the build.
Experienced extension builders in London offer clear home extension services from start to end. Local knowledge helps follow building rules with care. Plans stay simple, and costs stay clear. Each build adds space that feels natural and useful. Homes become better for daily life and future needs.

✔ Local house extension builders London with simple planning
✔ Clear home extension services with steady progress
✔ Trusted extension builders in London for family homes

Cost of House Extensions in London & Budget Planning

Many families want to know the house extension cost before work begins. This helps them plan money in a calm way. Some people check the home extension cost per square metre to compare space and value. Costs can change by size, layout, and materials. Simple plans often cost less and feel easier to manage. Clear planning helps avoid worry later. Knowing these basics helps families feel ready and safe before starting a house extension.
Some families look for affordable house extensions that fit daily needs. Others search for cheap house extension ideas that still add comfort and space. Small changes, like simple shapes, can lower the cost. Clear budgets help choices feel easier. Planning early helps save money over time. With smart steps, a house extension can feel helpful, balanced, and friendly for family life.

Get a Free Quote

Our House Extension Process from Start to Finish

Our home extension services follow easy steps. Each step is clear and calm. The process helps families feel safe and secure while work moves forward in a steady way.

Consultation and Planning

Consultation starts with friendly talks about space and needs. house extension builders London visit the home, check the area, and plan the work before building begins.
Design and Layout Preparation

Design planning shows how the new space will look. extension builders in London draw clear layouts that help rooms feel open, bright, and easy to use every day.
Approvals and Permissions

Approvals follow simple building rules. House Extensions in London need checks so that work stays safe and correct. This step helps avoid delays and problems later.
Construction and Project Delivery

Construction moves step by step with care. House Extension Specialists in London finish the work on time and keep the home clean and safe.

Frequently Asked Questions

Get answers to common questions about our commercial construction services.

Q1. What affects house extension prices most?

The house extension cost depends on size, layout, and materials used. Simple plans cost less, while larger spaces and special finishes raise the total price over time.

Q2. How do people compare extension prices easily?

Many families check the home extension cost per square metre to compare space and value. This method helps plan budgets and choose designs that feel clear and fair.

Q3. Can a house extension still be affordable?

Yes, affordable house extensions are possible with simple layouts and clear planning. Smart choices help control spending while still adding useful and comfortable space.

Q4. Are low-cost extension ideas worth using?

Many cheap house extension ideas work well when planned properly. Simple shapes and basic finishes can save money without harming comfort or daily use.

Q5. How can families plan extension budgets better?

Understanding house extension cost early helps families set limits. Clear budgets reduce stress and make planning easier from start to finish.