Medway · England

Sand mastic for sash & case windows in Cooling Street, Medway

Specialist sand mastic for Cooling Street: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.

  • Gaps round a timber door in stone or brick
  • Window mastic to renew ahead of painting
  • Silicone on a period window that looks wrong

Sand mastic for Cooling Street homes and businesses

Cooling Street questions

Can you help a landlord with a rental near Higham station?

Yes. We work for letting agents and landlords as well as householders, and several properties can be quoted together. You can call 0345 464 0079 or drop us an email with the details for a clear quote.

Is Cooling Street within the area you cover?

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

Do you offer different sealant colours?

Yes. Sealants come in white, clear, grey and other colours, and we agree the colour with you before any work starts.

What do you need from me for a quote?

Only a few details: the address or postcode, what’s wrong and any access issues. After that, simply ring 0345 464 0079 or email us.

Do you guarantee sand mastic work?

Every job comes with our 12-month guarantee, and we’re fully insured.

Which is right for my windows, sand mastic or modern sealant?

We will help you decide. Sand mastic suits many period homes, and modern sealants suit newer frames.

How long does sand mastic take?

Most jobs take anything from a few hours to a full day, depending on how many windows, including the preparation. We’ll confirm how long when we quote.

Can old silicone round a sash window be swapped for sand mastic?

Yes. We remove the silicone and clean the joint, then point it with sand mastic.

Sand mastic in Cooling Street

We work across Cooling Street renewing sand mastic on sash windows and doors. Every joint is cleaned out and filled by hand, finished to suit the masonry. If you’re dealing with old cement repairs round a window that have failed and mastic dropping out of the joint, we can put it right.

Mastic can only go onto a dry, clean joint, so window work in Cooling Street is booked around the forecast. Tell us about access to every side of the house, including upper-floor windows.

We stand behind the work with a one-year guarantee, so you are 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
Cooling Street (ME3)
Region
Medway
Cover
12 months on all our work
Price
Quoted before any work starts
Call
0345 464 0079
Updated
26 October 2026

Quotes for sand mastic in Cooling Street

We don’t publish a price list, because jobs vary so much. What we look at:

  • Whether there’s mould to deal with
  • Which sealant suits the joint
  • Whether the work is at height
  • Any working-time requirements on site

Rather than a set price list, we price the job in front of us: the amount of work, the old material and the access. The price is agreed before we begin.

What we need to know

There’s no need for technical detail. Just tell us:

  • If someone has resealed it before
  • The rough size of the job
  • What’s wrong with the joints now
  • The address or postcode of the job

Asking for a quote is easy: tell us what needs doing and where and its rough size. A few pictures by email make the job easier to understand, and we’ll take it from there.

Aftercare tips

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

  • Ask the planning authority about consent for listed or conservation-area homes
  • Don’t run silicone over sand mastic
  • Leave the new mastic unpainted
  • Inspect the joints round the windows every year or so

Make sure water drains away from the window surround. Water sitting against the mastic shortens its life.

An open joint round the box lets weather through. The longer it’s left, the more the joint opens.

Common problems we fix in Cooling Street

Rain on the window surround works into any crack and pushes it out. Exposed elevations usually fail first.

People normally contact us when they notice one of these:

  • Window mastic to renew ahead of painting
  • A silicone bead on a sash window that spoils the look
  • Gaps between timber frames and stone or brick
  • Cement or filler used on old window joints that has cracked

If you look after a building such as Cliffe Woods Primary School, the mastic around its windows and doors needs looking after like any other building’s.

Before you book anyone

  • What the cure time is
  • What happens if they find a problem under the old sealant
  • What product goes in the joint
  • Who does the work, and how experienced they are

10 questions to ask before booking

What sand mastic looks like in Cooling Street

Cooling Street is within about 3 miles of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on the mastic around older windows and doors, which can dry out and crack sooner where a building faces the weather. With historic houses such as Temple Manor (about 3.9 miles south) nearby, there’s older building stock in the area around Cooling Street as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.

If you let a flat or house near Higham station, cracked sand mastic around sash windows lets in the draughts tenants complain about. Homes close to St James' Church include some older properties, and 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. If you need sand mastic in Cooling Street, it’s easy to get a quote: please call 0345 464 0079 or drop us an email. We cover Medway from our Crawley base. Our Medway coverage runs to 68 places, Cooling Street among them. Chelmsford is on our list too, around 20 miles away.

Work in ME3 works the same way as everywhere else we cover. If you’re just outside Cooling Street, we cover 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). We also work in nearby towns such as 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).

Near you in Cooling Street

Typical jobs here are in homes near The Hundred of Hoo Academy and the streets around them. The closest station to Cooling Street is Higham station, about 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.

Map of Cooling Street © OpenStreetMap contributors

When it isn’t the sealant

We’ll always be straight with you, so here’s what new sealant will not do:

  • Damaged stone surrounds
  • Timber that has rotted
  • Sashes that need overhauling

If in doubt, ring 0345 464 0079 or email us and we will say what we think before you book.

What we seal

  • Brick reveals
  • Timber door frames
  • Stone surrounds
  • Tenement windows
  • Period & listed homes
  • Sash and case windows

What happens on the day

Once we’re on site, we check the joints match what you told us. If anything is different, we explain it before carrying on. Most jobs then take a few hours per window, depending on the condition of the joints. For a village or hamlet like Cooling Street, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.

  1. We check each window surround and the condition of the joint.
  2. We rake out the old mastic and clean the joint.
  3. Large voids are packed out.
  4. New sand mastic is applied and shaped by hand.
  5. The finish is dressed neatly.

Before we arrive

  • Let us know about stairs, lifts or work at height
  • Tell us if parking is tricky
  • Try not to wet indoor joints just before the visit

Get a quote

Every job is quoted individually. Simply phone 0345 464 0079 or send us an email and describe the job.

Get a quick quote

Related advice

What the job involves on each surface

Brick reveals

Brick reveals round timber windows are often pointed with sand mastic. It suits older brickwork.

Timber door frames

Round a period front door, sand mastic gives the right look.

DIY sealant or a professional job?

What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is.

Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.

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