Medway · England
Window & door mastic in Cooling Street, Medway
Our applicators work in Cooling Street on mastic around window and door frames, sills and patio doors. Old sealant removed completely, joints prepared properly and a 12-month guarantee.
- Gaps between the frame and the inside reveal
- Cold air getting in at the frame edge
- Gaps left after new windows were fitted
Window mastic in Cooling Street
Over two decades of sealing frames has taught us which products suit which walls. We’re ARBOMaster approved and fully insured, and every job is covered by a 12-month guarantee. We work on window sills, aluminium frames and composite doors, and the jobs we see most are cold air getting in at the frame edge and white mastic on grey or black frames.
Outdoor sealant needs dry, clean surfaces, so work on frames around Cooling Street is planned for dry weather. Let us know about access to all the frames, upstairs ones included.
All our work is covered by our 12-month guarantee, wherever you are in Medway.
- Place
- Cooling Street (ME3)
- Wider area
- Medway
- Cover
- A year, on every job
- Quotes
- A clear price before we start
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
How to look after the new joints
How long the joints last depends on use and care. Here’s what we suggest:
- Keep drainage slots and sill grooves clear
- Keep jet washers away from the mastic
- Walk round the house once a year and look at the joints
- Wipe condensation off the frames
Wipe the frames with soapy water when you clean the windows, and keep solvents and harsh chemicals off the joint.
Signs to watch for: split or missing mastic, gaps, damp patches inside or black mould on the reveal. If you notice one, it’s time to get the joint looked at.
Common problems we fix in Cooling Street
Mastic ages in the weather. Sunlight dries the surface out, and over the years it loses its give, cracks and comes away.
These are the problems we’re asked about most:
- Old mastic that has gone black or come away
- Cracked sealant at the sill ends
- Water coming in at the bottom corners of a door
- Cracked or shrunken mastic around the frame
If you look after a building such as Cliffe Woods Primary School, its window and door frames need their mastic kept sound, just like a home’s.
Questions to ask before booking
- What happens if they find a problem under the old sealant
- How the joint is cleaned and prepared
- Which sealant they’ll use, and why
- How much experience the applicator has
Surface by surface
Window sills
The end joints of a sill tend to fail before the rest. We reseal them so rain cannot run into the wall.
Timber windows & doors
Soft or rotten wood cannot be sealed successfully. If we find rot, we’ll tell you before going ahead, as that is a job for a joiner.
What happens on the day
Once we are on site, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. After that, the work takes anything from an hour or two to a full day, depending on how many frames there are. For a village or hamlet like Cooling Street, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- We start by checking each window and door with you.
- The old mastic is cut out and the surfaces cleaned back.
- We fit backing rod in deep gaps so the sealant is the right depth.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- Finally we tidy up and check each joint.
Before we arrive
- Let us know about stairs, lifts or work at height
- Tell us if parking is tricky
- On commercial sites, let us know about site rules
Getting a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we’ll talk you through what we’d do. When it suits you, phone 0345 464 0079 or drop us an email.
Advice
DIY sealant or a professional job?
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
Why deal with it now?
A cracked joint around a frame lets rain into the wall. Left long enough, it can stain inside walls, spoil plaster and rot wooden frames. Resealing now is a small job by comparison. In a small place like Cooling Street, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
The cost reflects the work involved, not guesswork. That’s why we ask about the job first.
Why choose Mr Mastic in Cooling Street
- Sanitary silicone with an anti-fungal additive in wet areas
- We leave the area clean and tidy
- Fully insured
- Domestic, commercial and hotel work
Take a look at how sealant jobs are priced and our reviews.
Also near Cooling Street
What else we do in Cooling Street
What affects the cost of window mastic
You will get a clear quote before work begins. It’s based on:
- Access and height
- Any working-time requirements on site
- The type of sealant required
- The number of rooms or windows
Commercial jobs are quoted on the same basis as homes: how much there is to do, how we reach it and what it needs, along with when we can work on site. Call for a quick quote and we’ll go through it with you.
Asking for a quote
Photos help, but a description is a good start. Try to tell us:
- Where the job is, and your postcode
- The rough size of the job
- Any access issues, like height or stairs
- What’s wrong with the joints now
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and add photos by email if you can.
Cooling Street: your questions answered
Can you help a landlord with a rental near Higham station?
Yes. We work for letting agents and landlords as well as homeowners. Just phone 0345 464 0079 or send us an email with the address and what needs doing, and we will give you a clear price.
Will you come out to Cooling Street?
Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can you do several jobs on one visit?
Of course. Doing several areas at once is generally more efficient, so mention them when you ask for a quote.
Will there be a smell?
Some sealants have a smell while they cure, which fades as it sets. Ventilation helps.
Is the new sealant paintable?
That depends on the product. Silicone is not paintable, but some hybrid sealants are. Tell us if you’re decorating and we’ll choose accordingly.
Can you do upstairs windows?
Yes, as long as they can be reached safely. Tell us about access when you get in touch and we’ll plan for it.
Do you have sealant for grey or black windows?
Yes, we choose a colour to suit the frame. Grey and black frames get grey or black sealant, and wood-effect frames generally suit brown.
Do you have insurance?
Yes. Mr Mastic is fully insured, and we have been doing sealant work for more than 20 years.
Window mastic in Cooling Street: local notes
Cooling Street is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That is hard on the mastic around window and door frames, especially on the side facing the sea. London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you let a flat or house near Higham station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. In the older streets around St James' Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Cooling Street is about 4 miles north of Rochester, in Medway. For window mastic in and around Cooling Street, please phone 0345 464 0079 or send us an email for a quick quote. We’re based in Crawley and cover Medway. We cover 68 towns and villages across Medway, from the larger towns to small villages. For nearby work, see our Chelmsford page (20 miles or so).
All of ME3 is covered for window mastic, from the main roads to the quietest streets. Other places close to Cooling Street include Cooling (1 mile north-east), Chattenden (2 miles south-east), Wainscott (2 miles south), Lower Upnor (2 miles south) and High Halstow (2 miles east). Within a short drive, we also cover Gillingham (6 miles south-east), Chatham (6 miles south), Rochester (4 miles south), Rainham (7 miles south-east), Strood (4 miles south) and Luton (5 miles south).
Landmarks near Cooling Street
Locally, jobs take us to homes and businesses close to The Hundred of Hoo Academy, among other places. Cooling Street’s nearest station is Higham station, roughly 2.2 miles south-west of the centre. Other landmarks nearby include Huguenot Museum (3.7 miles south) and French Hospital (3.8 miles south). For a walk, there’s Gad's Hill and Rede Common.