Medway · England
New-build mastic & snagging in Cooling Street, Medway
Specialist new build mastic for Cooling Street: careful preparation, the right product and tidy work. Call for a quick quote.
- Shower seals failing in the first year or two
- Cracked sealant around new window and door frames
- Joints pulling apart as timber shrinks
About our new build mastic in Cooling Street
Dust is the enemy of new-build sealant. We clean every joint thoroughly and prime where the surface and product need it, so the new bead bonds properly rather than sitting on a layer of grit. If you are dealing with worktop and upstand sealant coming away and gaps between new skirting and floors, we can put it right, whatever the surface.
For a small place like Cooling Street, the journey and access are planned in advance, and the work itself is the same as on any site.
You get a 12-month guarantee, the same in Cooling Street as everywhere else we work.

- Location
- Cooling Street (ME3)
- Region
- Medway
- Cover
- A year, on every job
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Do you need new build mastic in Cooling Street?
If plaster or screed was still damp when it was sealed, the bond suffers. On a busy site, joints are not always given time to dry.
Signs it’s time to call us include:
- Beads laid onto grit and dust from the build
- Cracks appearing as a new home settles
- Internal frame sealant that has split
- Leaking shower tray seals in a new home
If you’ve bought a new home near Higham station, the sealant around baths, showers and frames is worth checking in the first year or two.
Questions to ask before booking
- How the surfaces are prepared before sealing
- What happens if the job turns out different
- Who does the work, and how experienced they are
- Is VAT in the price?
Looking after it afterwards
A little care helps the new joints last. Our advice:
- Wait for the cure time before using a resealed shower
- Avoid running a DIY bead over the old one
- Wipe joints with warm soapy water
- Keep photos and emails about snagging items
Follow the cure time we give you before the area gets wet. Silicone is normally left for about a day to cure enough for use.
Report failed sealant to the builder while you are in the snagging period. After that, putting it right may fall to you, so raise it early.
What happens if it’s left?
A tube of sealant from the DIY shop will not fix the cause: grit, unprimed surfaces and old layers underneath. Cutting out, cleaning and priming are what make the difference. Where a wall is exposed, as many are in small places like Cooling Street, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Why choose Mr Mastic in Cooling Street
- 180+ five-star Google reviews
- White, clear, grey or another colour, product permitting
- You choose the colour before work begins
- 12-month guarantee on every job
Surface by surface
Windows and doors
Draughts around new frames are often a sealant gap. We look at the joints and reseal where needed.
Skirting and floors
New homes often develop a gap between skirting and floor. A flexible sealant closes it without cracking like caulk.
DIY versus a professional finish
If you are 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 does not work out, we can still put it right.
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
Cooling Street questions
Do you cover Cooling Street for new build mastic?
Yes. Our work covers London and the South East, and Cooling Street is part of that. Just ring 0345 464 0079 or drop us an email with a few details of the job, and we will send you a clear quote.
Will you come out to Cooling Street?
Yes, we do. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Can I add another job to the visit?
Yes, we can. Several rooms, windows or areas can go on one quote.
Do you remove the old sealant?
Yes. We cut out all the old sealant and clean the joint before applying anything new.
Should I go to my builder first?
Your builder, if you are still in their snagging or warranty period. If that doesn’t work out, we are happy to quote with our one-year guarantee.
What does new build mastic cost?
There’s no set price, as it depends on the job: how much there is, what’s there now, how we reach it and what it needs. We agree the price before any work begins.
Do the sealants smell?
Possibly a little. It fades as the sealant cures, and ventilation helps.
Will it make a mess?
Very little: the area around the joints is protected first, and we clear up the old sealant and our materials before we leave.
Places near Cooling Street
More services for Cooling Street
How it works
When we arrive, we look over the joints with you first, so there are no surprises. We protect the surfaces around the joints before any work begins. Most jobs take a few hours in a single home. For a village or hamlet like Cooling Street, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- Each joint is checked for movement before any work starts.
- We remove the failed sealant and clean the joints.
- Joints are dried and primed where the product calls for it.
- Baths are filled with water, then the new sealant is applied.
- The finished joints are checked and the cure times given.
How to prepare
- Tell us about any water getting in
- Tell us about any previous sealing or DIY attempts
- Tell us if parking is tricky
Getting a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is. Whenever you’re ready, phone 0345 464 0079 or send us an email.
Advice
Honest limits
To be straight with you, there are a few things sealant will not fix:
- Damaged fittings that need replacing
- A tray or bath that is not properly supported, until it’s fixed
- Your warranty claim itself, which is between you and the builder
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we’ll tell you honestly.
What we seal
- Skirting & floors
- Windows & doors
- Bathrooms & en suites
- Show homes
- Kitchens
- Plot handovers
New homes and floors in Cooling Street
Cooling Street is close to the coast. New homes near the sea put their outside mastic to work from day one, so any gaps are best picked up early. The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Around Cooling Street, as everywhere, new build mastic is only as good as the preparation behind it.
Cooling Street is about 4 miles north of Rochester, in Medway. Homes, rented property, offices and hotels in Cooling Street is covered for new build mastic, old or new, large or small. Every job comes with our 12-month guarantee. 68 places in Medway are on our list. Our Chelmsford page covers work nearby, about 20 miles away.
Our applicators cover all of the ME3 postcode area for new build mastic. Neighbouring places we cover for new build mastic 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). Further out, 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).
Local landmarks in Cooling Street
Typical jobs here are in homes near The Hundred of Hoo Academy. For rail, the closest station is Higham station, about 2.2 miles south-west of the centre. Nearby you will also find Huguenot Museum (3.7 miles south) and French Hospital (3.8 miles south). For a walk, there’s Gad's Hill and Rede Common.
