Free no-obligation design
Full end-to-end service
Your very own installation project manager
Fully insured installation
Workmanship guarantee
25 Years experience
We are with you every step of the way
Feedback from our customers
“The work was carried out to a highly professional standard from start to finish. They also ensured that any issues that arose after completion were promptly addressed and resolved.”Elizabeth, WD18
Verified Checkatrade Review
“I had a full bathroom refurbishment, 4 Dimension helped with design, supplied the furniture and did the installation. I can’t recommend them enough, very professional and the work is of very high standard. Will definitely get them to do other work in
the house.”Colin, AL1
Verified Checkatrade Review
“My experience with 4 Dimensions was professional, and they acted with compassion, urgency and had a great attention to detail. I highly recommend this company!” LaTia, WD25
Verified Checkatrade Review
“Robert was very prompt with communication and responding to my queries. He was highly knowledgeable and doing business was very straightforward. I’ll no doubt be contacting him again when I need further work undertaken in my bathroom or kitchen.” Bradley, AL4
Verified Checkatrade Review
“Thrilled with my bathroom makeover! The new look is sleek and modern, with well-chosen tiles and stylish fixtures. The functional design and attention to detail make it a practical yet elegant space. Highly recommended!” David, WD17
Verified Checkatrade Review
“I am absolutely delighted with my new bathroom install and must commend 4 Dimension for a very good job, looking to do further work with you guys. Thank you.” John, HA9
Verified Checkatrade Review
Acreditations & Certifications
FAQ
Our installers are fully trained to treat your home with the utmost respect and care. We are BiKBBi (British Institute of Kitchen, Bedroom and Bathroom Installation) registered, and in most cases, an installation manager will visit to monitor progress. Your project manager will also be available to answer any questions you may have.
The average amount of time needed to finish a full bathroom suite, which includes plastering, tiling, electrical works, and product installation, is approximately 10 days. The duration for this project, however, varies depending on the size of the room.
Our installers will arrive at or around 8:30am (the exact time will depend on the distance from their location) and continue working until that day’s tasks are completed. Of course, timescales can differ; they can’t start grouting until the tile adhesive is dry or begin painting until the plastering is done. In these cases, our installers will use their time away from the worksite to restock supplies.
Your toilet will be disconnected but will be reconnected by the end of the work day so you can still use it. However, you will not have full bathroom facilities until the work is completed, plus an additional 24 hours to allow the materials to dry.
We will have to come to an agreement about this as it is important to us that we maintain a high level of quality and consistency.
Although, you have the option to supply your own tiles (we would need to be informed if they are ceramic or porcelain and what layout you want).
We can also reinstall existing products you would like to keep, like a radiator or heated towel rail.
We work with multiple partner showrooms from our location as well as surrounding areas.
There may be times when unscheduled work is necessary for things that were not apparent before installation began (for example, damaged floorboards or a previous leak that has caused damage). If this happens, we will discuss it with you as soon as it is identified, so that we can proceed according to your wishes.
If rubbish collection is booked, we will arrange for a skip. On completion of the project, the skip will be collected, and the rubbish disposed of accordingly.
If rubbish collection isn’t booked, you will provide us with a location within the property to temporarily store it before disposal.
The kitchen or bathroom renovation process typically starts with an initial consultation to discuss your needs and preferences.
From there, our team of experts will work with you to create a design that meets your requirements and budget.
Once the design is finalised, we will source the necessary materials and fixtures, and then our team will handle the installation and finishing touches.
The length of a kitchen or bathroom renovation depends on the size and complexity of the project. A small-scale renovation may take a few weeks, while a more extensive renovation could take much longer.
We will provide you with a detailed timeline at the start of the project to ensure that you clearly understand the timeline.
Yes, we offer custom design services for both kitchens and bathrooms. Our team of experts will work with you to create a design that meets your unique needs and preferences.
Yes, we have a large pool of trusted suppliers from which we can source high-quality materials and fixtures for your project. We will work with you to select the best materials and fixtures for your design and budget.
In most cases, using your kitchen or bathroom during the renovation process is possible. However, there may be periods when the space is inaccessible due to work being done.
We will work with you to minimise disruptions and ensure the renovation process is as smooth and stress-free as possible.
At 4DKB, we understand that every kitchen and bathroom renovation project is unique, with different sizes and complexities and varying material and fixture preferences. As such, the cost of your project will depend on your specific needs and requirements.
To provide you with a clear understanding of the costs involved, we will prepare a detailed quote at the start of the project. Our expert team will work with you to understand your vision and the specific features you desire. We will then provide a comprehensive quote outlining all costs, including materials, fixtures, and labour.
Our transparent and detailed quoting process ensures that there are no hidden costs or surprises and that you have complete clarity on what to expect. With our competitive pricing and commitment to using only high-quality materials and fixtures, you can trust that you will receive exceptional value for your investment.
Yes, we provide guarantees and warranties for our work to ensure you are delighted with the final result. We take pride in delivering high-quality workmanship and exceptional customer service and stand behind our work.
Absolutely! We offer a free consultation to discuss your ideas and requirements. Our design experts will help you visualise your dream kitchen or bathroom, taking into account your style, budget, and needs.
We source all the materials and products your project needs from trusted suppliers. Our team works with you to select the best materials and products that meet your style, budget and needs.
We understand that your needs and preferences may evolve throughout the renovation process. We’ll work with you to accommodate changes if it doesn’t significantly affect the agreed-upon plan.
The duration of a project depends on its complexity, size, and scope. We provide a detailed project plan before commencing work, outlining the timeline and progress of your renovation.
Our team will coordinate the project from start to finish, and you won’t need to be present on-site for the duration. However, we will inform you of progress and updates throughout the process.
All projects are fully insured and include a 12-month workmanship warranty for peace of mind.
Read the full guarantee workmanship-guarantee
We strive to ensure that all our clients are satisfied with the outcome of their projects. If there are any issues, we encourage our clients to communicate with us, and we will work together to resolve the matter satisfactorily.
It’s easy! Contact us to schedule a free consultation to discuss your project requirements, budget and style preferences. From there, our team will create a custom design plan and project estimate for your review and approval. Once the project is confirmed, we’ll coordinate and manage the entire renovation process for
Yes — we manage the full project from design to final installation.
We work across Hertfordshire, Bedfordshire, London and surrounding areas.
A member of our team visits your home, discusses ideas and measurements, and helps you plan your project. Book your free consultation
Yes. We cover Nascot Wood, Cassiobury, West Watford, Garston, Leavesden, Watford Town Centre and surrounding areas.
Absolutely. Many Watford homes have compact bathrooms, and we specialise in creating layouts that maximise space.
Yes — we install wet rooms, walk-in showers and level-access shower areas.
Most installations take 7–14 days depending on size, complexity and tile choice.
Yes. We cover Marshalswick, Fleetville, Sopwell, Chiswell Green, Jersey Farm, St Stephens, New Greens, London Colney and surrounding areas.
Absolutely. We regularly work on Victorian, Edwardian and 1930s homes which often require careful planning around walls, pipework and layout constraints.
Yes — including Apsley, Boxmoor, Leverstock Green, Nash Mills, Chaulden, Bennetts End, Grovehill and surrounding areas.
Definitely. We often work on older homes with tight bathrooms and dated plumbing arrangements.
Yes. We cover Great Ashby, Chells, Broadwater, Bedwell, Old Town, Pin Green, Shephall, Symonds Green and the wider Stevenage area.
Yes. We regularly work on compact bathrooms and ensuites and can suggest layouts and fittings that make better use of the space.
Yes — including Old Hatfield, Birchwood, South Hatfield, Roe Green, Ellenbrook, Hatfield Garden Village and nearby areas.
Absolutely. We work on many smaller bathrooms and can recommend layouts and fixtures to make the most of the space.
Yes — including Mill End, Croxley Green, Chorleywood, Money Hill, Batchworth and the wider Rickmansworth area.
Yes — we regularly design efficient layouts for small bathrooms and ensuites.
Yes — including Harrow on the Hill, Pinner, Kenton, Harrow Weald, Wealdstone, North Harrow and South Harrow.
Absolutely. We design smart and efficient layouts for compact bathrooms and ensuites.
Yes — including Finchley, Barnet, Enfield, Islington, Muswell Hill, Crouch End, Finsbury Park, Highgate, Hampstead, Palmers Green and Wood Green.
Absolutely — we regularly work on small bathrooms and awkward room layouts.
If you’re unsure whether we cover your postcode, just get in touch. We regularly work across Hertfordshire, North London and surrounding areas, and can usually accommodate projects slightly outside our core locations. Call 01923 551006 or email info@4dkb.co.uk
No — there is no additional fee for projects within our listed service areas. For locations slightly beyond these, we’ll give you clear guidance when you get in touch.
Our team covers most of Hertfordshire (including Watford, St Albans, Hemel Hempstead, Hatfield, Stevenage and Rickmansworth) as well as North London and surrounding areas. If you live nearby, we can usually still help.
Absolutely. If you’re unsure, book a free consultation or use our contact form — we’ll confirm availability and help you plan your project.
Yes — all areas receive the same level of service, including design support, installation, plumbing, tiling and finishing.
Yes — while this page focuses on bathroom installations, we also design and install kitchens across the same service areas.
A refresh typically includes cosmetic and functional upgrades such as door replacements, new worktops, tap upgrades, re-grouting, lighting improvements and minor plumbing or electrical works.
Yes. A refresh focuses on improving existing layouts and core installations, reducing labour time and material costs compared to a full strip-out and rebuild.
Yes. We carry out a site assessment to confirm measurements, scope and access before providing a confirmed quotation.
Most refresh works are completed within a few days, depending on the scope and materials involved.
Yes. Our refresh service is commonly used for end-of-tenancy works, compliance upgrades and presentation improvements before sale or re-letting.
