Construction & Contractors

The 7 Best Construction Companies in London

Finding the right construction company in a bustling city like London can be a daunting task. Whether you’re planning to build a new home, renovate an office, or undertake a commercial project, choosing the best company is crucial for success. Our guide to the 7 Best Construction Companies in London aims to simplify your search by highlighting top-notch firms known for their expertise, reliability, and quality craftsmanship.

Construction companies in London offer a wide range of services to cater to various needs. Some of the key services include:

Residential Construction
Commercial Construction
Renovation and Remodeling
Architectural Design
Project Management
Interior Design
Landscaping

When selecting a construction company, consider the following aspects:

Experience and Reputation
Portfolio of Past Projects
Client Reviews and Testimonials
Licensing and Insurance
Cost Estimates and Transparency
Timeframe and Deadlines
Sustainability Practices

Understanding these services and factors will help you make an informed decision, ensuring your project is completed on time, within budget, and to the highest standards. Dive into our guide to discover the 7 best construction companies that London has to offer, each with a proven track record of excellence.

1. Golden Roofing Expert Ltd
2. Assurance Garage Door Installation And Repair
3. Plus Rooms

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★★★★★ 2026

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The 7 Best Construction Companies in London

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1. Golden Roofing Expert Ltd

★ ★ ★ ★ ★ 5/5

10 Sale Pl, W2 1PX, London

Roofing contractor
Chimney services
Emergency care service
Fiberglass repair service
Skylight contractor

Why we chose them

Golden Roofing Expert LTD is a distinguished family-run business known for providing exceptional roofing services to both domestic and commercial clients in and around London. Their expertise spans a wide range of services including new roof installations, flat roofing, and comprehensive repairs. Specializing in long-lasting flat roofing systems and conservatory roof conversions, they ensure that your roofing needs are met with precision and care. The company prides itself on delivering quality…

Offering more than just roofing solutions, they excel in chimney services, emergency care service, fiberglass repair service, and skylight installations. Their dedication to maintaining the integrity of your roof is evident through their maintenance contracts, which include annual inspections to prolong the life of your roof. With a philosophy that blends art and engineering, they ensure that every project is not only functional but also aesthetically pleasing. Their commitment to customer satisfaction and high-quality craftsmanship makes them a standout choice for your roofing needs.

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2. Assurance Garage Door Installation And Repair

★ ★ ★ ★ ★ 3/5

40 Cotton St, E14 0EL, London

Why we chose them

Assurancegaragedoorinstallationandrepair.com stands out as a trusted leader in the world of garage door installation and repair. Specializing as both a contractor and garage door supplier, they offer comprehensive solutions tailored to meet the needs of their clients. Their commitment to quality and reliability ensures that every project is completed with precision and attention to detail, making them a preferred choice for homeowners seeking dependable service.

With a reputation for excellence, the company provides an array of services that cater to various aspects of garage door maintenance and installation. Whether it’s a new installation or a complex repair, their skilled team handles each task with professionalism. This dedication to customer satisfaction and high-quality workmanship makes them an invaluable addition to our directory, showcasing their expertise in the industry.

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3. Plus Rooms

★ ★ ★ ★ ★ 4/5

Unit 30, NW Works, 135 Salusbury Rd, NW6 6RJ, London

Why we chose them

Plus Rooms is a leading construction company based in London, specializing in bespoke home extensions and renovations. With a focus on transforming spaces into light-filled, functional areas, they offer a range of services including kitchen extensions, side extensions, wraparound extensions, loft conversions, and more. Known for their expertise and commitment to high standards, over 60% of their business comes from client recommendations. Their experienced designers work closely with clients to…

Operating across various London boroughs, Plus Rooms provides a seamless experience by managing every aspect of the design and build process, from planning permissions to finishing touches. Their projects are known for being delivered on time and within budget, thanks to their unique processes and skilled team. The company is praised for its excellent project management, clear communication, and the ability to swiftly address and resolve any challenges. With a strong reputation for quality and customer satisfaction, they have become a trusted choice for homeowners looking to enhance their living spaces.

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4. Justservicesgroup.com

★ ★ ★ ★ ★ 4/5

Highland House, 165 The Broadway, SW19 1NE, London

Why we chose them

JustServicesGroup.com, a London-based company, specializes in comprehensive boiler repair and replacement, serving Central and Greater London. Understanding the impact of a malfunctioning boiler on daily life, they offer swift and effective solutions to ensure comfort and convenience. Their expertise extends beyond boilers to include a wide range of services such as heating, air conditioning, and plumbing. With over 30 years of industry experience, they are committed to maintaining homes with…

The company prides itself on being more than just a service provider, acting as a trusted partner in home maintenance. Their team of qualified professionals delivers high-quality workmanship in air conditioning installation, gas engineering, and emergency plumbing. With a focus on energy-efficient solutions and customer satisfaction, they offer simple monthly plans and 24/7 support to keep homes running smoothly. Their dedication to customer care and safety is further emphasized by their Gas Safe and F-Gas registration, ensuring every job meets the highest industry standards.

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5. J. Murphy & Sons Limited

★ ★ ★ ★ ★ 4/5

Hiview House, Highgate Rd, NW5 1TN, London

Why we chose them

Murphy is a leading international, multi-disciplined engineering and construction company founded in 1951. It excels in delivering world-class infrastructure across the United Kingdom, Ireland, and North America. Known for its innovative and better-engineered solutions, the company specializes in key infrastructure sectors such as transportation, water, power, and natural resources. With a robust order book of £2.2bn at the start of 2022 and a commitment to sustainability, evidenced by…

Offering a comprehensive range of services, Murphy provides expertise in ground engineering, utility connections, and specialist services like pipeline testing and welding. Its diverse projects include the North Bristol Relief Sewer and the Triton Knoll energy project, showcasing its capability in handling complex infrastructure challenges. The company’s dedication to equality, diversity, and inclusion, coupled with its strong values and culture, makes it a distinguished choice in the engineering and construction industry.

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6. M2K Roofing Limited

★ ★ ★ ★ ★ 5/5

56 Elgin Ave., W9 2HA, London

Why we chose them

M2K Roofing Limited stands out in the roofing industry by offering comprehensive solutions for common homeowner issues related to age and wear. With expertise in roofing, siding, gutters, skylights, and insulation, the company addresses a wide range of needs with precision and care. Their commitment to quality and extensive knowledge ensures that clients receive reliable and durable service, which is why they are a valued addition to our directory.

Specializing as a roofing contractor, the company is dedicated to maintaining the integrity and aesthetics of homes. Their focus on solving issues efficiently makes them a trusted choice for homeowners seeking effective and lasting results. This dedication to excellence is a key reason for their inclusion in our directory, highlighting their role as a leader in the roofing sector.

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7. K O'Donoghue Ltd

★ ★ ★ ★ ★ 5/5

35 Heartwood Blvd, W3 6AA, London

Why we chose them

K O’Donoghue Ltd. is a distinguished roofing contractor known for its comprehensive range of services. Specializing in the installation and repair of all types of roofing, including flat roofs, the company caters to residential, commercial, and industrial properties. With a commitment to quality and cost-effectiveness, they provide direct management without relying on outside contractors, ensuring clients receive exceptional value. Their offerings extend beyond roofing to include general…

One of the standout features of this company is their client-centric approach, offering free estimates, site surveys, planning, and design consultations. This personalized service model is supported by a dedicated team that focuses on providing excellent customer service without the overhead of expensive office staff. With a reputation for reliability and expertise, they are a preferred choice for landlords and property owners seeking efficient and affordable maintenance solutions.

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Frequently asked questions

What services do construction companies in London typically offer?

Construction companies in London generally offer a range of services including residential and commercial building, renovations, extensions, project management, and specialized services such as eco-friendly construction and interior design.

How much does it cost to hire a construction company in London?

The cost of hiring a construction company in London can vary widely depending on the project scope. On average, residential projects might range from €1,500 to €3,000 per square meter, while commercial projects can be between €2,000 and €5,000 per square meter.

What is the typical timeline for a construction project in London?

The timeline for construction projects can vary based on the size and complexity. A small renovation might take 2-3 months, while larger projects like building a house can take anywhere from 6 months to over a year.

How do I choose a reliable construction company in London?

To choose a reliable construction company, consider their experience, past projects, client reviews, certifications, and whether they are members of professional bodies. It's also important to meet them in person to discuss your project.

What should I consider before starting a construction project in London?

Before starting a construction project, consider your budget, timeline, permits and regulations, design preferences, and potential disruptions. It's also wise to consult with professionals for detailed planning.

Are construction companies in London equipped to handle eco-friendly projects?

Yes, many construction companies in London offer eco-friendly building options, utilizing sustainable materials and energy-efficient designs to minimize environmental impact.

Do construction companies in London help with obtaining necessary permits?

Most construction companies in London assist with the process of obtaining necessary permits and planning permissions, guiding you through legal requirements to ensure compliance.

Can I get a fixed quote from a construction company in London before the project starts?

Many construction companies offer fixed quotes after an initial consultation and assessment of the project. It's important to have detailed discussions to ensure all aspects of the project are covered in the quote.

Who is the best-rated professional in The 7 Best Construction Companies in London?

Golden Roofing Expert Ltd tops our ranking as the best-rated professional with a score of 5,0/5.

Which professional has the most reviews in this guide?

Golden Roofing Expert Ltd is the professional with the most reviews (376), followed by Assurance Garage Door Installation And Repair (276) and Plus Rooms (240).

How is this ranking compiled?

We analyze public reviews for each professional, their average rating, number of reviews and the quality of available information. We currently include 7 professionals with an average of 215 reviews each. Verified professionals have confirmed that their contact details and profile are up to date.

The 7 Best Construction Companies in London

1. Golden Roofing Expert Ltd

2. Assurance Garage Door Installation And Repair

3. Plus Rooms

4. Justservicesgroup.com

5. J. Murphy & Sons Limited

6. M2K Roofing Limited

7. K O'Donoghue Ltd

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