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

Facade and window perimeter sealing in Privett, Hampshire

Facade joint and window perimeter sealing on commercial buildings across Privett, carried out by CSCS-carded applicators. Fully insured and CHAS accredited.

  • Perimeter joints where frames meet the structure
  • Air leaks through failed facade joints
  • Weathered facade joints that have lost their grip
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Signed off, with 12 months’ guarantee.
South East, London & Scotland
Constructionline member
Fully insured: £5m PL

Need facade sealing in Privett?

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

How we handle facade sealing in Privett

We don’t install glazing systems or replace glass. What we seal are the joints around them: perimeter joints where frames meet the structure, panel joints and window perimeters, using sealants classified for facade or glazing use. We work on window and door perimeters, perimeter joints where frames meet the structure and shopfront frames, and the usual reasons a site gets in touch are water coming in around window frames and failed seals around shopfront and entrance frames. Looking for mastic applicators who cover Privett? We’ve been sealing commercial buildings since 2005, CHAS accredited and a Constructionline member.

Conversions around smaller places like Privett often join new frames to old masonry or timber, and the sealant at those junctions has to cope with two materials that move differently.

What our 12-month guarantee covers is the way we did the job: preparation, application and finish. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.

Location
Privett (PO12, PO13)
Region
Hampshire
Cover
12 months on every job
Quotes
A fixed quote before we start
Telephone
01277 525 020
Updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Do you need facade sealing in Privett?

Adhesive failure, where the sealant peels away from one face, normally comes from poor preparation. Dust, old sealant residue, damp or a missing primer stop it bonding properly.

Look out for the following:

  • Water coming in around window frames
  • Air leaks through failed facade joints
  • Failed sealant on precast panel joints
  • Discoloured or dirty facade joints

University estates such as University of Portsmouth - North Zone (2.7 miles east of Privett) tend to have a rolling programme of new buildings and refurbishments, each with window perimeters and facade joints to seal.

Before you book anyone

  • How the existing material will be dealt with
  • Which product they’ll use, and why it suits the joint
  • Their approach to joint depth and backing
  • Their pre-qualification and accreditations

Choosing a commercial sealant contractor

How the quote is worked out

Your fixed quote is built from the real scope. It takes account of:

  • Whether old sealant has to be cut out first
  • The total length or number of joints
  • Specialist products, such as fire-rated or hygienic sealants
  • The size and state of each joint

Larger quantities, tricky access or phasing all shape the price. Site requirements like inductions and permits play a part as well, along with the time of year for external work.

Before you send an enquiry

Good information means a firmer quote. When you get in touch, include:

  • Asbestos survey details if the building is older
  • Your programme or deadline
  • Specification clauses that apply
  • Approximate linear metres or a joint schedule

Quotes are fixed against the scope you send, so you know the figure before anyone is on site. To ask for one, speak to us on 01277 525 020 or email a schedule or drawings.

From enquiry to sign-off

Diagnose, treat, sign off: that’s the shape of every visit. We inspect the joints and confirm what’s in scope, then the work is carried out to the specified product and detail, and the job ends with a walk round and sign-off. Several jobs near Privett can be grouped on one trip. Tell us your site hours and we’ll plan around them.

  1. Access, site rules and timing are settled with the client up front.
  2. Weather and temperature are checked against the product’s limits.
  3. Each joint is cut out and the edges inspected.
  4. Joints are cleaned, primed if required and fitted with backing rod.
  5. Facade-grade sealant goes in and is tooled to a tidy concave profile.
  6. Once signed off, the work carries our 12-month guarantee.

What we need from you

  • Confirm the product named in the specification
  • Tell staff and tenants when we will be in
  • Clear stock, furniture or equipment away from the joints

Getting a fixed quote

Let us know the site, the scope and your timescale, and we’ll put a fixed quote together. The easiest way is to speak to us on 01277 525 020 or email a schedule or drawings.

Ask for a quote

Advice

Work for main contractors and building owners

We work for building owners and managing agents on everything from one building to a spread of sites. Several sites can go on one quote, so there’s one set of paperwork to deal with.

CHAS accredited and a Constructionline member, we’re straightforward to vet for your supplier list. We are fully insured, and our insurance certificate can go with the quote.

Surface by surface

Perimeter joints at frames and structure

Perimeter joints at frames often show their age first. We cut them out, prepare both faces and reseal to the specification.

Render and coated surfaces

Rendered and painted facades need a sound edge for the sealant to bond to. We remove flaking material so the bead bonds to a firm surface, and areas needing repair are flagged.

Mastic packages on Privett sites

The sea is no more than about 1 mile from Privett. 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. Central London is about 67 miles from Privett. Building activity in the commuter belt runs from new flats near stations to business park refurbishments, so mastic packages have to keep pace with busy programmes.

Work at a hotel such as Alverbank Hotel (to the south of Privett) tends to be programmed around bookings, mastic included. Units on estates such as Cranbourne Industrial Estate (to the east of Privett) tend to be reclad and refitted as tenants change, and each job leaves cladding and perimeter joints to seal.

Privett is about 1 mile south-west of Gosport, in Hampshire. Across the PO12 postcode area, it works the same way: send details, get a fixed quote, we seal, and the work is guaranteed. We work across 723 places in Hampshire, from busy centres to rural villages.

Business premises anywhere in PO12 and PO13 are within our area for facade joints. We cover commercial and managed buildings on Bay Road, Gomer Lane and Vectis Road and the roads nearby. We also cover 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). A short drive away, we cover 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).

Local landmarks in Privett

Locally, jobs take us to sites close to Wiltshire Lamb pub, Bay House School and St Vincent College and the streets around them. The closest station to Privett is Portsmouth Harbour station, roughly 2.3 miles east. Nearby you’ll also find Tricorn Centre (3.1 miles east) and Search (1.5 miles east). For a walk, there’s West of the River Alver and Portsdown Hill.

Map of Privett © OpenStreetMap contributors

Why act early in Privett

Scaffold or access already on site makes resealing much simpler. Coordinating facade sealing with other external works avoids paying for access twice. Sealant hardens, cracks and loses grip with age, UV and movement. Replacing it before it fails keeps water out.

We don’t publish prices, because the scope varies so much from one building to the next. For a fixed figure, call for a quote and we will price your job on its own details.

What you get with us

  • Colour agreed before work starts
  • 12 months’ guarantee on every job
  • CHAS accredited contractor
  • A Constructionline member, so easy to vet

Read our cost guide and our accreditations and insurance.

Privett: questions and answers

Do you cover business parks and estates near Privett, such as Cranbourne Industrial Estate?

Yes, sites like Cranbourne Industrial Estate are within our area, along with the rest of Privett. A few photos and the unit address let us price the work.

Do you take on work at healthcare sites like Gosport War Memorial Hospital?

Yes. Healthcare sites are among the places we work. The estates team’s permit system and infection-control rules come first, and the work is planned around them.

Can you send site paperwork?

Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote.

Do you work to architects’ specifications?

Yes. Send it with your enquiry, and the quote will be based on it, flagging anything that needs clarifying.

Does the weather affect the work?

Outside, yes. Sealant needs a dry joint and a temperature within the product’s range, so frost, rain or cold mornings can delay outside work. Internal work is rarely affected.

Are you CHAS accredited?

Yes. We’re CHAS accredited, we are a Constructionline member and we use CSCS-carded applicators.

Do you replace windows or glass?

No. That work needs a glazing specialist. What we seal are the joints around frames and panels.

Accreditations

Trusted. Accredited. Insured.