Medway · England

Rochester Riverside Window Mastic

Window mastic in Rochester Riverside from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.

  • Sealant in the wrong colour for the frame
  • Gaps between the frame and the inside reveal
  • Whistling draughts around closed windows

Window mastic in Rochester Riverside

Window mastic for homes and businesses in Rochester Riverside

Whether it’s one leaking patio door or every frame on the house, you will get a clear quote before any work starts. Just ring 0345 464 0079 or email us and tell us how many frames there are and how they’re reached. We work on uPVC windows, timber windows & doors and aluminium frames, and common reasons people get in touch are sealant in the wrong colour for the frame and cracked internal joints between frame and plaster.

Around Rochester Riverside, conservatories, garden rooms and patio doors are often part of the house. Their glazing joints and frame seals are as much a part of the job as the windows.

A one-year guarantee comes as standard, so you’re not left on your own once the job is done.

Mr Mastic applicator sealing the top of a white uPVC door frame on a red-brick house
Place
Rochester Riverside (ME1, ME2, ME3)
Region
Medway
Cover
One year on every job
Quotes
A clear price before any work starts
Phone
0345 464 0079
Last updated
26 October 2026

When it is not the sealant

A few problems are outside what sealant work can do:

  • Broken hinges, locks or handles
  • Damp problems in the wall away from the window
  • A frame that has rotted at the joint

If in doubt, ring 0345 464 0079 or send us an email and we’ll say what we think before booking.

What we seal

  • Window sills
  • Patio & French doors
  • uPVC windows
  • Aluminium frames
  • Composite doors
  • Timber windows & doors

Why act early in Rochester Riverside

Not every sealant suits a window. Decorators’ caulk and bathroom silicone are not designed for outside joints that move. An exterior, low-modulus sealant stays flexible in sun and frost. Homes in smaller places like Rochester Riverside can face more weather, and failed outside joints let damp into walls. Inside, a split seal lets water into floors and panels just as it would anywhere.

The cost depends on the size of the job, how hard the old material is to remove and access to the work. We give a clear quote before work begins.

Why us?

  • Over 20 years’ experience
  • 4.9 on Google from 180+ five-star reviews
  • Full insurance on every job
  • Old sealant always removed completely

Read how sealant jobs are priced and our reviews.

Aftercare tips

Once the sealant has cured, a few habits help it last:

  • Walk round the house once a year and look at the joints
  • Keep timber frames painted
  • Use gentle cleaners on frames and sealant
  • Paint up to the joint, not over it

On timber frames, keep the paintwork in good order, since wood that gets wet swells and shrinks more. Keep paint off the silicone itself.

Water trapped behind a failed joint can start rot in timber frames and sills. Once wood has rotted, it needs repair before it can be sealed, so it pays to reseal before that happens.

Landlord and commercial work in Rochester Riverside

We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.

Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. We can quote for more than one property at once.

What we do, step by step

We work through the job in order: protect, prepare, seal, tidy. Typically it takes a few hours for a handful of frames, longer for a whole house, and the area is left clean. In a smaller place like Rochester Riverside, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.

  1. First we look at every frame and agree the list.
  2. We remove the old mastic and clean the frame and the wall.
  3. We fit backing rod in deep gaps so the sealant is the right depth.
  4. We apply a weatherproof sealant to match the frame and tool it neatly.
  5. We clear up and check every joint is fully closed.

Before we arrive

  • Tell us if parking is tricky
  • On commercial sites, let us know about site rules
  • Mention any leaks or damp you’ve noticed

How to get a quote

We quote each job on its own. Simply phone 0345 464 0079 or send us an email and describe the job, and photos are welcome.

Get a price

Read more

Common problems we fix in Rochester Riverside

Frames are never completely still. Sun on a frame makes it expand, and it contracts again overnight, while the brick or render around it hardly moves. If the sealant cannot stretch, it splits.

It’s worth asking for a quote if you see:

  • Damp patches on the reveal after heavy rain
  • Mastic that has split away from the wall
  • Gaps between the frame and the inside reveal
  • Cold air getting in at the frame edge

Rented homes near Rochester station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints.

Before you book anyone

  • What happens if they find a problem under the old sealant
  • Whether all the old sealant comes out first
  • What preparation is included
  • What the quote includes, VAT included or not

Our hiring checklist

Windows and doors in Rochester Riverside

Rochester Riverside is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That’s hard on the mastic around window and door frames, especially on the side facing the sea. With historic houses such as Restoration House (about 0.3 miles south-west) nearby, there’s older building stock in the area around Rochester Riverside as well as newer homes. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.

Homes close to Church of St Nicholas include some older properties, and the joint between an old wall and a newer frame is usually the first place rain gets in. Managing a site like Rochester Riverside Church of England Primary School? Then the mastic around its windows and doors needs looking after like any other building’s.

Rochester Riverside is about 1 mile east of Rochester, in Medway. Whether you are in the middle of Rochester Riverside or further out, window mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Across Medway, we cover 68 places, Rochester Riverside among them. For nearby work, see our Chelmsford page (24 miles or so).

We cover every part of the ME1, ME2 and ME3 postcode area for window mastic. Whether your property is on Crow Lane, Love Lane and Corys Road or anywhere close by, we can help. We also cover the places around Rochester Riverside: Frindsbury (1 mile north), Chatham Waterfront (1 mile south-east), Brompton (1 mile east), Luton (2 miles south-east) and Chatham (3 miles south-east). Within a short drive, we also cover Gillingham (3 miles south-east), Rainham (5 miles south-east), Park Wood (5 miles south-east), Lordswood (4 miles south-east), Twydall (4 miles east) and Hoo St Werburgh (3 miles north-east).

Local landmarks in Rochester Riverside

We work in homes and buildings around St Michael the Archangel Church, Former Ordnance Store At Chatham Gun Wharf and St John Fisher RC Comprehensive School, among other places. Other local landmarks include Fort Pitt Grammar School (0.7 miles south-east), The Eagle Tavern (under half a mile south-west) and The Paddock (0.8 miles south-east). There’s a railway station in Rochester Riverside itself: Rochester station. Other landmarks nearby include Huguenot Museum (less than half a mile west) and French Hospital (less than half a mile south-west). Green spaces nearby include Gad's Hill and Rede Common.

Map of Rochester Riverside © OpenStreetMap contributors

Should I try it myself first?

Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.

If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so tell us about it when you ask for a quote.

Your questions about window mastic in Rochester Riverside

I let a flat near Rochester station. Can you help?

Yes, landlords and agents are among the people we work for. You can ring 0345 464 0079 or send us an email with the details for a clear quote.

Will you come out to Rochester Riverside?

Yes. Rochester Riverside is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.

Can you reach windows above the ground floor?

Yes, where it’s safe. Higher or awkward frames may need extra access, and we’ll confirm what’s needed.

Should I try DIY first?

You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.

Do the sealants smell?

Sometimes, a little. It fades as the sealant cures, and ventilation helps.

How much does window mastic cost in Rochester Riverside?

Every job is different, so each one gets its own quote. For a quick quote, ring 0345 464 0079 or drop us an email with a short description of the job.

Where do you work from?

Our base is Crawley. Our area covers South East England, London and Scotland.

Do you seal inside as well as outside?

Yes. Plenty of draughts come through the inside joint as well as the outside, so it can be worth sealing both.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job