Your Trusted Castlethorpe Plumbing Experts

Plumbing problems never happen at a convenient time. From leaks and burst pipes to blocked drains or boiler issues, they can cause major disruption—and finding a plumber who arrives on time, works cleanly, and actually fixes the problem can feel like a challenge.

Too often, homeowners in Castlethorpe are left frustrated by tradespeople who cancel at the last minute, leave a mess, or fail to complete the job properly. You shouldn’t have to settle for that.

With Grand Union Plumbing & Heating, you get a professional, fully certified Castlethorpe plumber who responds quickly, works efficiently, and leaves your home in perfect order.

We also serve nearby areas such as Lavendon and Hanslope offering the same reliable service across the region. For broader services across the area, visit our Milton Keynes plumbing page.

Castlethorpe's No.1 For Plumbing. Professional, respectful and efficient dedication to each job!

When inviting a plumber into your home, trust is key. With hundreds of 5-star Google reviews and a 4.9/5 rating on Trustpilot, Grand Union Plumbing & Heating has built a reputation Castlethorpe residents can rely on.

Our team brings years of hands-on experience, full certification, and comprehensive insurance to every job—ensuring your plumbing is handled safely and efficiently.

Whether you need a quick repair or a larger installation, our Castlethorpe plumbers provide the professional, stress-free service you deserve.

If you need a plumber in Castlethorpe who can get the job done with the minimum of mess stress and hassle, then look no further. We can carry out a wide range of plumbing tasks which include:

Here for you with almost all of your plumbing needs.

We'll be on hand to help you with any plumbing emergencies.

Got a problem with your boiler? We'll fix it for you!

Here to maintain your boiler servicing and avoid unneeded repairs.

Drainage issues can be a pain, our expert team will be happy to take a look. 

Beautiful bathrooms, expertly installed to suit your space and style.

You can see from our many reviews that our customers know to expect the highest levels of service, quality and workmanship from our reliable and dependable team. We are excellent communicators between ourselves and our customers and are proud of the work that we do.

Whether you need emergency boiler repair, boiler servicing, or general plumbing work carried out in your bathroom or kitchen, our top rated plumber in Castlethorpe can help. Here’s what to expect:

Our guarantee is to provide a quality plumbing service for residents in and around Milton Keynes, with a commitment to excellent customer service, showing up on time, honest quotes, no hidden expenses, keeping the place nice and tidy during the work and respecting people's homes.

We’re here to make your life that little bit easier with good, honest, reliable work and easy to understand service plans to further take away the stress of looking after things yourself.

It’s only once we have been able to assess the problem, that we will be able to confidently say how long it might take to fix, although we’re pleased to say most work can be completed on the initial visit with parts we carry. We can often be there on the day you call, too. The easiest way is to check price and availability now.

We are proud to say that you will never pay a call-out charge with us, ever. You will simply benefit from a fixed quote for your peace of mind and prices given by the job, not by the hour. Find out for yourself and check our price and availability now.

Yes, we are fully licensed and insured, for up to £2,000,000 public liability. Our Castlethorpe plumber also undergoes regular training to ensure the best service. We have a 12-month parts and labour guarantee on all work done, too. Book now to avoid delays.

Yes. We offer a selection of affordable service plans to help prevent costly issues and keep your home’s plumbing and heating in top condition. Our members receive the fastest responses, lowest prices and enjoy peace of mind for safety and comfort in their home. Check pricing and availability to discuss your needs.

Your feedback is important in our endeavour to grow and improve as a company. Please click here to tell us your thoughts and share your experiences.

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Should you need any of our services, one of our team can be on hand to help across any of these locations.