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

Mastic Sealing in Deadwater

Our CSCS-carded applicators take on mastic sealing for building owners, managing agents and housing associations in Deadwater and the surrounding area. Send photographs or drawings for a fixed quote.

  • Damaged joints in communal entrances and corridors
  • Mastic failing across several blocks on an estate
  • Movement joints with sealant missing
1
Send details
Photos, drawings or a schedule, or we visit.
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.
South East, London & Scotland
CHAS & Constructionline
£5m public liability

Need mastic sealing in Deadwater?

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

FAQs: Deadwater

Is Deadwater off your patch?

No. Small places get the same service as large ones. Our area covers London and the South East counties. We plan jobs in smaller places so return trips are kept to a minimum.

We manage a building near Liphook station. Can you help?

Yes. Managing agents, landlords, property factors and housing associations are who this service is for. Send the address, photos of the elevations and your access arrangements, and we will give a fixed quote.

Will you just go over the old sealant?

No. Overlaying old sealant is a frequent cause of early failure, so everything comes out first.

When is resealing likely to be due?

Nobody can honestly give a figure in years, since movement, weather, cleaning and use all affect it. Regular checks let you plan resealing before leaks or damage.

Can you seal joints high up on a block?

Every block is different. How upper joints are reached is agreed before work is booked so the fixed quote reflects it.

Can you plan resealing across several buildings?

Yes. Each building is inspected, quoted and scheduled in turn starting wherever is most urgent.

How many days will you need on site?

We plan the time on site around your programme and access. We will give you an estimate of time on site when we quote.

Mastic sealing in Deadwater, done properly

Mastic Doctor has sealed joints on commercial and residential blocks since 2005. Our applicators are CSCS-carded and we hold public liability insurance. Each building we complete carries a 12-month guarantee on our workmanship. If you have draughts at frames across a block and communal area joints that look neglected, we can put it right, whatever the surface. Whoever orders the work in Deadwater, the brief is usually the same: a clear scope, tidy work and joints that don’t fail again.

Owners with buildings around smaller places like Deadwater often group mastic work so one visit covers several properties. One quote can cover a whole list of addresses.

A 12-month guarantee applies to all our work. Should something we installed fail, give us a call on 01277 525 020 or email a schedule or drawings and we will come back to it.

Place
Deadwater (GU35)
Wider area
Hampshire
Guarantee
A 12-month guarantee
Quote
A fixed quote before we start
Phone
01277 525 020
Last updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

After the work

Once the work is signed off, these steps help:

  • Look at the sunniest and most exposed elevations first
  • Mention RAMS, insurance or CSCS requirements up front
  • Protect low-level joints in entrances
  • Track which buildings were done and when

Protect entrance and corridor joints from knocks where possible. Damage at low level is the most common reason communal joints fail early.

The longer failed joints are left, the more likely the substrate edges break up. Once that happens, repairs come before resealing.

Commercial clients in Deadwater

Housing associations and managing agents often need work done across blocks and communal areas. We phase the work so people keep access, with each stage agreed with your site contact.

FMs need a contractor who is easy to get on site. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we will confirm them with the quote.

What we can’t put right

Honesty saves time and money. Fresh joints won’t solve:

  • Roof leaks, gutters or failed flashings that aren’t sealant joints
  • Substrate edges that need repairing first
  • Leaks through the frame itself rather than the perimeter

If in doubt, ring 01277 525 020 or send details through our quote form and we will say what we think before you book.

Surfaces we seal

  • Shopfronts below residential blocks
  • Balcony and threshold joints
  • Communal kitchens and washrooms
  • Communal entrances and stairwells
  • Window and door perimeters on blocks
  • External wall and movement joints

Different surfaces, different methods

Communal areas

We keep entrances and stairs open throughout. Work is planned in sections.

Tenement and older buildings

Some old mastics in pre-2000 buildings contain asbestos, so we check the asbestos register or survey first. If it’s suspected, work stops until it’s tested.

Diagnose, treat, sign off

When we get to site, we sign in, go through any site induction and check how permits are handled. Floors, finishes and fittings next to the joints are covered before any cutting starts, and the work normally takes a day or two for a single block, longer for an estate programme. For a site in Deadwater, we plan so the whole job is done in one go where possible. Photos with rough sizes let us arrive with everything needed.

  1. First we look at the mastic on each building and note what needs replacing.
  2. You get a fixed quote, priced per building where that helps your budgeting.
  3. Dates, areas and access are agreed so residents or tenants can be told in advance.
  4. Failed mastic is removed and the faces taken back to sound, dry material.
  5. Backing rod and primer go in as the joint requires, then the new bead is placed and tooled.
  6. Each building is checked on completion and the work carries our 12-month guarantee.

What we need from you

  • Tell us which areas need to stay in use
  • Share the asbestos register for older buildings
  • Have the specification and drawings to hand

Getting a fixed quote

The quickest route to a quote is a few photos and the site postcode. Upload them with the quote form, or call the office on 01277 525 020 or email drawings and photos to discuss it first.

Get a price

Read more

Cost factors for mastic joints

These are the things that shape the price:

  • Specialist products, such as fire-rated or hygienic sealants
  • Working within restricted access windows
  • How much there is to seal
  • Distance, for remote addresses

Whether it’s a single area or a whole estate, the same things set the price: scope, access, product and programme. Call for a quote and we’ll put a fixed figure on it.

What to include in your enquiry

There’s no need for a formal survey. A few details are enough to get going:

  • Whether the building will be occupied during the work
  • Rough lengths or quantities, or drawings if you have them
  • Anything awkward about access or site hours
  • Any specification or named product

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

Frames, entrances and external joints in Deadwater

Deadwater is in the South East, one of the UK’s drier regions. External mastic still waits for dry faces and the right temperature, and south- and west-facing elevations, which take the most sun and rain, often age first. Deadwater is about 42 miles from central London. Commuter-belt towns tend to have plenty of managed blocks near stations and town centres.

For agents with blocks near Liphook station, which lies south-east of Deadwater, a block-wide mastic programme deals with frames, balconies and entrances in one go. If your remit includes a building such as Mill Chase Academy, frame and door mastic can be programmed for the holidays. Property owners at sites such as Woolmer Trading Estate, 0.7 miles to the west of Deadwater, can have mastic renewed between lettings.

Deadwater is about 1 mile east of Bordon, in Hampshire. Commercial clients in Deadwater can call on us for mastic joints, as part of our coverage of Hampshire. Across Hampshire, 723 places are covered, Deadwater among them. For work in that direction, see our Portsmouth page, about 23 miles away.

We take on mastic joints across the GU35 postcode area, for business premises of every kind. We cover commercial and managed buildings on Alma Road, Varna Road and Rowan Road and the roads nearby. We also cover Lindford (1 mile north-east), Bordon (1 mile west), Hollywater (1 mile south), Standford (1 mile south-east) and Pinewood Village (1 mile north-west) for mastic joints. Bigger towns within reach include Basingstoke (15 miles north-west), Farnborough (13 miles north), Fleet (11 miles north), Aldershot (10 miles north-east), Alton (6 miles north-west) and Petersfield (8 miles south-west).

Local landmarks in Deadwater

Locally, jobs take us to sites close to Weyford Nursery and Primary School and the streets around them. Deadwater’s nearest station is Liphook station, roughly 3.6 miles south-east of the centre. Other landmarks nearby include Chase Community Hospital (0.7 miles south-west). For a walk, there’s Deadwater Valley and Selborne Hill.

Map of Deadwater © OpenStreetMap contributors
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