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

Mastic sealing for building owners and managing agents in Privett, Hampshire

Work needed on a mastic joint in Privett? We look at it, seal it with the right product and hand it over with a 12-month guarantee.

  • Draughts at frames across a block
  • Old repairs sealed over failed mastic
  • Brittle perimeter mastic across a building
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
London, the South East & Scotland
CHAS accredited
£5m PL insurance

Mastic sealing near Privett

Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.

How we handle mastic sealing in Privett

In buildings from before 2000, some old mastics contain asbestos. Before we disturb it, we ask to see the asbestos register or survey, and work stops for testing if there’s any doubt. We don’t remove asbestos-containing materials. We work on communal entrances and stairwells, external wall and movement joints and window and door perimeters on blocks, and what we’re called in for most is leaks at window and door perimeters and cracked, hardened mastic round windows on a block. A specialist sealant contractor works differently from a general builder: on jobs in Privett, preparation and product choice get the time they need.

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

The 12-month guarantee covers our workmanship: the preparation, the sealing and the tooling. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.

Mastic Doctor team members lined up next to their branded vans outside an office building
Location
Privett (PO12, PO13)
Wider area
Hampshire
Guarantee
12 months on every job
Quote
Fixed quote, scope in writing
Phone
01277 525 020
Page updated
3 November 2026

Doing it in-house

Putting right a botched joint often costs more than sealing it well at the start, because the whole bead must be removed and the faces cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.

Site maintenance staff can often handle a short internal joint. Where it goes wrong is preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.

Looking after buildings in and around Privett

The sea is no more than about 1 mile from Privett. On buildings near the shore, the side facing the weather typically needs its mastic renewed first. The South East is one of the drier parts of the UK. Outside mastic still needs a dry joint and the right temperature, while the elevations that take the most sun tend to show hardened mastic first.

If you own or manage units on a site such as Cranbourne Industrial Estate, 1.3 miles east of Privett, failed mastic on frames, door surrounds and external joints can be dealt with unit by unit. Site managers at schools like Gomer Infant School can fit frame mastic into the summer works.

Privett is about 1 mile south-west of Gosport, in Hampshire. Anywhere in PO12, the process is the same: send details, get a fixed quote, we seal, and the work is guaranteed. We work across 723 places in Hampshire.

Work on mastic joints is covered throughout PO12 and PO13, whatever the building. For a building on Bay Road, Gomer Lane and Vectis Road or nearby, send details and we will quote for mastic joints. Nearby places we also cover include Alverstoke (1 mile south-east), Clayhall (1 mile south-east), Haslar (2 miles south-east), Portsmouth Point (2 miles east) and Portsea (2 miles east) for mastic joints. Further afield, our area takes in Havant (9 miles north-east), Eastleigh (14 miles north-west), Fareham (4 miles north), Horndean (10 miles north-east), Hedge End (10 miles north-west) and Waterlooville (8 miles north-east).

Near you in Privett

Recent enquiries here include premises near Wiltshire Lamb pub, Bay House School and St Vincent College. For rail, the closest station is Portsmouth Harbour station, about 2.3 miles east. Well-known places in the area include Tricorn Centre (3.1 miles east) and Search (1.5 miles east). Open spaces near Privett include West of the River Alver and Portsdown Hill.

Map of Privett © OpenStreetMap contributors

Do you need mastic sealing in Privett?

Occasionally the substrate fails, not the sealant, such as crumbling render, brick arrises or frame edges. If the edges are unsound, we say so before quoting the sealing.

If one of these sounds familiar, it’s time for a closer look:

  • Old repairs sealed over failed mastic
  • Repeated reactive repairs to the same buildings
  • Brittle perimeter mastic across a building
  • Mastic failing across several blocks on an estate

Churches, halls and community buildings such as St Faith's Church are looked after by trustees and committees like any other owner, and their frames, doors and external joints need mastic renewed in time.

Comparing quotes

  • The terms of the workmanship guarantee
  • Their public liability cover
  • Their pre-qualification and accreditations
  • Their approach to joint depth and backing

Our contractor checklist

Quoting for work in Privett

These are the things that shape the price:

  • Induction, permit and paperwork requirements
  • Phasing around occupants
  • The size and state of each joint
  • Specialist products, such as fire-rated or hygienic sealants

Every site prices differently: joint size, product, access and site hours all play a part. A fixed quote follows once we understand the job.

Sending details for a quote

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

  • Where the site is, with the postcode
  • Any specification or named product
  • Clear photographs of the problem areas
  • How the joints are reached, and at what height

A good quote starts with a clear picture: what’s there, how much of it, how we reach it and what’s specified. Share whatever details you have and we’ll fill any gaps with a visit.

Questions we are asked in Privett

Is Privett too far out for you?

No. Places such as Privett are covered as much as the big towns. Our area covers London and the South East counties. Send photos and a list of what needs doing, and we will plan the job to need as few trips as possible.

Does the sea air around Privett change the choice of sealant?

It can. Wind-driven rain and, closer to the shore, salt air are harder on external joints. That puts more weight on product choice, primers where the manufacturer specifies them, and correct joint sizing.

Can you plan resealing across several buildings?

Block-wide and estate programmes are common. The quote can be split however suits your budgeting.

Is mastic sealing guaranteed?

Our workmanship carries a 12-month guarantee, backed by public liability insurance.

Do you take on small jobs?

We quote for single jobs as well as large packages and programmes. Send details for a fixed quote.

Does the weather affect the work?

It can, for external work. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so external work may be moved if conditions aren’t right. Indoors, the weather is rarely a problem.

Can you quote from photos?

It depends on the job. Simple work can often be priced from photos, and bigger or more complex jobs typically get a visit.

Why deal with it now?

Resealing ahead of leaks keeps it to a maintenance task. Once water has tracked in, the repair list grows, and the complaints come with it. For buildings in places like Privett, one well-planned visit beats several small ones, so we’d suggest renewing all the joints that are going, not just the worst.

We don’t publish prices, because the scope varies so much from one building to the next. Call for a quote.

Why clients in Privett choose us

  • RAL and finish matching where the product range allows
  • Health and safety: CHAS accredited
  • Work to your specification and the manufacturer’s guidance
  • Constructionline member

Read our cost guide or how we’re accredited.

Work for main contractors and building owners

Hospitality, education, healthcare, office and retail clients come to us directly as well. We plan around the way the building is used, so the building keeps working while we do.

Main contractors use us as their sealant subcontractor on new-build and refurbishment projects. Programme, specification and site rules come first.

Diagnose, treat, sign off

We begin with a short walk round with whoever looks after the building, to confirm the scope, the order of work and any areas we must keep clear. Then we strip out anything that has failed, prepare every joint and seal it. Work in places the size of Privett is planned as a single visit where we can. Photos with rough sizes let us arrive with everything needed.

  1. We inspect the joints, building by building, and record what has failed and why.
  2. A fixed quote follows, split by block or building if that suits you.
  3. Dates, areas and access are agreed so residents or tenants can be told in advance.
  4. Old sealant is stripped and each face prepared back to firm material.
  5. Deep joints get backing rod, faces are primed if the manufacturer specifies it, then the joint is sealed and tooled.
  6. Finished joints are looked over and the 12-month guarantee confirmed.

Getting the site ready

  • Have the specification and drawings to hand
  • Let building users know which areas are affected
  • Agree which areas must stay open

Quotes

Send details, get a quote, we seal, guaranteed: that’s how every job runs. The first step is to speak to us on 01277 525 020 or email a schedule or drawings with what you know.

Get a quick quote

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