The Mastic Doctor team standing beside their branded vans outside an office building
Medway · England

Construction and new-build mastic in St Mary Hoo, Medway

Looking for construction mastic in St Mary Hoo? It’s simple: send details, get a quote, we seal, guaranteed.

  • Failed sealant in an existing building being refurbished
  • New external sealant already peeling away
  • Different trades sealing to different standards
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
Covering the South East & Scotland
Constructionline member
£5m public liability

Construction mastic in St Mary Hoo

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

From enquiry to sign-off

Site rules come first: sign-in, induction and whatever permit system the building uses. With the paperwork done, we take the joints in the sequence agreed with you, and each area is checked before we leave it. For a building around St Mary Hoo, tell us how to find it and who will meet us. Send that with the details and we will confirm the plan with the quote.

  1. We price from the drawings, specification and programme you send.
  2. We return a fixed quote that ties the mastic package to your programme.
  3. Any site paperwork you need (RAMS, insurance certificate, CSCS details) is confirmed with the quote.
  4. We seal each plot or floor as it’s released to us.
  5. Joints are cleaned, primed where the maker requires it, backed and sealed to the specification.
  6. Before handover, snags are dealt with and the package is signed off under our 12-month guarantee.

Preparing the site

  • Share the asbestos register for older buildings
  • Tell us your opening times and when work is allowed
  • Move anything stored against the joints

Request a quote

A handful of photographs and a postcode is the fastest way to a quote. Upload them with the quote form, or call the office on 01277 525 020 or use the quote form if you’d rather talk the job through.

Ask for a quote

Related advice

Construction mastic in St Mary Hoo

Refurbishment work needs a slightly different approach from new build. Existing joints have to be stripped back to sound faces, because fresh sealant can’t key into cured silicone. After that, the joints are prepared and sealed to the specification. If you are dealing with early adhesion failures on new external joints and inconsistent sealant finishes from plot to plot, we can help, on floor and skirting junctions, internal decorators’ caulk and window and door perimeters alike. A specialist sealant contractor works differently from a general builder: in St Mary Hoo, that means joint design, primers and backing rod as standard.

Sites around smaller places like St Mary Hoo can be a fair drive from suppliers, so we come with everything the package needs, timed to the stage the job has reached. Drawings, photos and the programme let us give a fixed quote.

We sign every job off with a 12-month guarantee. It’s a plain promise: if our work fails within that year, we put it right.

The Mastic Doctor team standing beside their branded vans outside an office building
Location
St Mary Hoo (ME3)
Wider area
Medway
Guarantee
A 12-month guarantee
Quote
Quoted before any work starts
Phone
01277 525 020
Page updated
3 November 2026

When it isn’t the sealant

We check first that sealant really is the fix. It won’t put right:

  • Specifying the product where the designer hasn’t
  • Frames fitted out of tolerance
  • Faulty frames rather than failed sealant

If in doubt, give us a call on 01277 525 020 or email the details over and we’ll say what we think.

Where we work in St Mary Hoo

  • Floor and skirting junctions
  • Cladding and panel joints
  • Brick and block movement joints
  • Sanitary and kitchen joints
  • Window and door perimeters
  • Internal decorators’ caulk

New build and refits around St Mary Hoo

With the shore within about 2 miles, St Mary Hoo counts as a coastal location. On a coastal site, facade and perimeter joints face driven rain and, closer to the beach, salt, which puts weight on correct joint sizing, priming and a sealant suited to the exposure. Rainfall across the South East, St Mary Hoo included, is lower than in many parts of the UK. Still, external mastic needs dry faces within the maker’s temperature limits, which isn’t every day, which is why external dates are agreed with the site manager.

Extensions at sites like Medway Maritime Hospital (6 miles south-west of St Mary Hoo) normally sit beside working departments, and the mastic follows strict access rules. For contractors on a campus like University of Greenwich - Medway, which lies south-west of St Mary Hoo, facade and perimeter sealing has to fit around students and term dates.

St Mary Hoo is about 4 miles south of Canvey Island, in Medway. Looking for construction mastic in St Mary Hoo? We can help, as we do across Medway. St Mary Hoo is one of 54 places we cover in Medway for mastic packages. Our London page has more on work in that area, about 30 miles away.

If you need construction mastic in ME3, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. We also cover Fenn Street (1 mile south-west), High Halstow (1 mile south-west), Sharnal Street (2 miles south-west), Tunbridge Hill (2 miles south) and Kingsnorth (2 miles south) for mastic packages. Further afield, our area takes in Gillingham (6 miles south), Chatham (8 miles south), Rochester (6 miles south-west), Rainham (7 miles south), Strood (7 miles south-west) and Luton (7 miles south).

What’s near St Mary Hoo

Well-known places in the area include Bay Museum (3.6 miles north) and Medway Maritime Hospital (6 miles south-west). The countryside around St Mary Hoo includes Bishop Saltings.

Map of St Mary Hoo © OpenStreetMap contributors

Different surfaces, different methods

Fire-rated sealant where specified

Fire-rated sealant forms part of some packages, installed to the product’s tested detail where it is specified. Fire stopping design belongs to the designer and building control; we work to the specification and the manufacturer’s installation guidance.

Kitchens and utility areas

Worktop upstands, sinks and splashbacks are sealed once the kitchen is fitted. The sealant is a kitchen-grade product, food-safe where food contact is possible.

Why it’s worth doing now in St Mary Hoo

On a refurbishment, there’s a choice between resealing existing frames and replacing them. If the frame is in good order, cutting out and resealing the perimeter can be all it needs. If the frame is life-expired, we will tell you. Converted and older buildings near places like St Mary Hoo tend to move, and aged sealant cracks. A sealant with the right movement capability, correctly sized, lasts far better.

The work involved drives the cost: stripping out, preparation, sealing, access and phasing. Call for a quote and we’ll explain how it’s made up.

Why appoint us

  • Fixed quotes based on photos, drawings or a visit
  • Specification-led, product-correct work
  • Colours confirmed for the specified product
  • CHAS accredited

Read how commercial sealant jobs are priced or how we’re accredited.

Quoting for work in St Mary Hoo

To price the job, we consider:

  • Working within restricted access windows
  • The product specified
  • How much there is to seal
  • Site requirements such as inductions and permits

Pricing mastic packages depends on how many there are, their condition and the access, plus any specification you are working to. Ask us for a fixed quote.

What we need to price the job

Good information means a firmer quote. Helpful details to send:

  • Asbestos survey details if the building is older
  • Any dates the work must fit around
  • Approximate linear metres or a joint schedule
  • Where the site is, with the postcode

To get a fixed quote, phone 01277 525 020 or email drawings and photos, telling us the site location and the nature of the job. Our quote form is another easy route.

When to bring in a specialist

Paperwork matters too. Many sites expect CSCS cards, RAMS and proof of insurance, and we will confirm the paperwork you need with the quote.

Some joints are best left to specialists: for example fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. Getting these wrong typically costs more in the end than doing them right.

Questions about St Mary Hoo

Can being near the sea in St Mary Hoo affect the sealant we need?

It can. Wind-driven rain and, closer to the shore, salt air are harder on external joints. Product choice and preparation matter more, and sea-facing elevations are worth inspecting more often.

Do you take on work at healthcare sites like Medway Maritime Hospital?

Yes, provided the work is planned with the site’s estates team. The estates team’s permit system and infection-control rules come first, and the work is planned around them.

Can you work while the building is occupied?

Yes, with some planning. We agree a sequence with your contact so just one area at a time is disrupted.

How do we ask for a quote?

You can use the quote form on this site; alternatively, ring 01277 525 020 or send photos by email. Photos, drawings or a joint schedule help us quote quickly.

What will the job cost?

Each job is quoted on its own details. For yours, phone 01277 525 020 or email drawings and photos.

Can you handle several sites?

Yes. A group of buildings can go on one quote, and you deal with one contact throughout across South East England, Greater London and Scotland.

Can you work to our specification?

We follow the specified sealant, and we will raise it if something in it doesn’t suit the joint. Specifications often reference BS EN 15651 or BS 6213.

Accreditations

Trusted. Accredited. Insured.