Home Improvement Company

West Midlands Building Company is the trusted home improvement company in Birmingham, the West Midlands and surrounding areas. Unlike other companies, we provide a complete start-to-finish building service, meaning everything is handled under one roof for your convenience.

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Our Home Improvement Services

Single Storey Extensions
Double Storey Extensions
Side Extensions
Rear Extensions
Wrap Around Extensions
Front House Extensions
Garage Conversions
Kitchens
Home Renovations
House Remodelling

Why Choose WMBC?

Complete Project Management

We manage everything in-house, including design, build, and finishing touches.

Architectural Drawings & Planning

Our architects handle all drawings, permissions, and regulations for you.

High- Quality Material

We use premium materials sourced directly from our own Builders Merchant for unbeatable value.

10-Year Guarantee

Every project comes with a full decade of aftercare and a workmanship guarantee.

Payment Options & Flexibility

From concept to completion, we handle every stage of your renovation in-house — design, build, installation and aftercare — meaning no third-party contractors and a seamless experience from start to finish.

Flexible Payment Plans

Spread the cost of your renovation through staged payments that align with your project milestones.

0% & Low-Rate Finance Options

Choose from a range of finance plans, including interest-free options on qualifying projects.

Deposit Protection & Secure Payments

Your deposit is fully protected, and all payments are handled safely through trusted, regulated partners.

A Proven Track Record

We have a proven track record of completed projects that are aesthetically beautiful, functional, and energy efficient. We, alongside our sister company West Midlands Double Glazing, have a portfolio unlike any other builder or construction company in the region.

The Process

Fill out a form or give us a call to book in for your FREE consultation where you can tell us all about your renovation needs & requirements, and we can provide our expert advice. If you fill out a contact form on this page, we’ll be in touch within 24 hours.

One of our representatives will come out to see you for your initial consultation where we discuss all of your renovation desires and requirements in detail, and they’ll then return for a secondary consultation once they have designed your home improvements in our 3D modelling software. This allows you to get an extremely realistic idea of how your renovation will look, and give you a chance to provide any feedback or design changes you’d like to implement. 

Choose from the aforementioned payments plans. Whether it be interest, 0% interest or buy now, pay later, we’ll be able to find a flexible plan to meet your budget requirements. 

Once your payment plan has begun, our office team will give you a call to introduce themselves and will set up your dedicated WhatsApp group shortly after. It will include all relevant team members and your assigned Renovation Installation Manager who will serve as your main point of contact throughout the process.

Our architect will then visit the site in order to create the architectural drawings. These drawings are then passed over to our structural engineer who will in turn make the structural calculations based on this. We then submit the architectural drawings and structural calculations to Building Control. Before both get sent off, we will require your sign off giving you a chance to look everything over once more prior to submission. We will also submit the relevant applications to Severn Trent.

Once we have the go ahead from Building Control and, if required, the Planning Department from your local council, as well as any other relevant bodies — your project works start date will be issued! 

Your works will begin and our specialist teams will start to bring your dream renovations into reality. Typically, the works will follow these stages: Foundations, Brickwork, Roof Installation and Completion. Each of our teams are courteous, tidy and consummate professionals who will always show the utmost respect to your property.

After approximately six weeks, your renovations will be completed! At this point in time, we will provide you with the following certifications: Building Control Completion Certificate, Electrical Certificate, Gas Safe Certificate (for any gas works), and a FENSA certificate (for windows and doors). At WMDG, every process is followed to the letter. Just a reminder… we provide a comprehensive 10 year guarantee on all works to give you peace of mind regarding your new renovations for the next decade. Now… you can start your brand new home life! 

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Ready to Start Your Project?

Tell us a bit about your project, and one of our specialists will be in touch to discuss design ideas, pricing, and finance options.

House Extensions Designed to Add Space, Value & Comfort

A well-designed house extension is one of the most effective ways to improve your home without the stress of moving. Whether you’re looking to create more living space, improve layout or add long-term value, we deliver high quality house extensions tailored to your property and lifestyle.

Professional House Extension Specialists

Choosing the right specialists for your house extension is essential. We manage every stage of the build with care, from initial design through to final completion, ensuring a smooth, efficient process and outstanding results.

Experienced House Extension Builders

We have years of experience delivering successful house extensions of all sizes and styles. With expert knowledge of planning, construction and structural work, we ensure every extension is built to the highest standards and completed on time.

Fully Insured & Accredited Extension Company

For complete peace of mind, we are a fully insured and accredited extension company. All house extensions are completed in line with current building regulations, safety standards and industry best practices.

Home Extensions Tailored to Your Property

Every home is different, which is why we design home extensions to suit your existing property, layout and future needs. Our tailored approach ensures your extension blends seamlessly with your home while maximising space and functionality.

Single Storey Home Extensions

Single storey home extensions are ideal for creating open-plan kitchens, dining areas or additional living space. We design and build extensions that improve flow, natural light and everyday usability.

Double Storey House Extensions

A double storey house extension offers maximum space without sacrificing garden area. From additional bedrooms to expanded living areas, we deliver practical, cost-effective solutions that significantly increase property value.

Rear, Side & Wrap-Around Extensions

Rear, side, and wrap-around extensions are perfect for homeowners looking to transform underused space. We designs extensions that enhance both internal layout and external appearance while remaining in keeping with your home’s character.

House Extension Costs & Prices Explained

Understanding house extension costs is a key part of planning your project. We believe in transparent pricing and clear advice, helping you make informed decisions from the outset.

What Affects House Extension Costs?

House extension costs can vary depending on size, design, materials, structural requirements, and finishing choices. Site access, groundwork and planning considerations may also affect the overall price.

Typical House Extension Prices

While every project is unique, we provide realistic guidance on typical house extension prices based on your requirements. Our detailed quotations ensure you understand what’s included and how your budget is allocated.

Transparent Pricing & No Hidden Costs

We pride ourselves on honest, upfront pricing. Your quote will clearly outline all aspects of the work, with no hidden fees or unexpected extras… just clear, reliable house extension pricing that you can trust.