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

Construction Mastic in Purbrook

We carry out mastic packages for new-build and refurbishment projects in Purbrook. Send details for a fixed quote.

  • Frame perimeters left unsealed or poorly sealed
  • Sealant knocked or painted over by other trades
  • Different trades sealing to different standards
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
Covering the South East & Scotland
CHAS & Constructionline
£5m PL insurance

Construction mastic for businesses in Purbrook

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

How we handle construction mastic in Purbrook

Getting a subcontractor through site induction should be simple. Our applicators are CSCS-carded, and we are CHAS accredited and a Constructionline member, and we’re fully insured. RAMS, an insurance certificate and CSCS details can be confirmed with the quote if you tell us what you need. We work on floor and skirting junctions, cladding and panel joints and sanitary and kitchen joints, and what we’re called in for most is internal caulk splitting as the building dries out and mastic snags holding up handover. Most enquiries from Purbrook start with one failed joint and grow into a wider look at the building: we check the joints around it and give you an honest view of what needs doing now and what can wait.

For contractors on site in a town like Purbrook, the mastic has to fit the programme: perimeters sealed before scaffold is struck, internal sealant after decoration, snags before handover. Send drawings and the programme and we’ll price to suit.

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.

Place
Purbrook (PO7, PO6)
Wider area
Hampshire
Cover
A 12-month guarantee
Quotes
A fixed quote before we start
Call
01277 525 020
Updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

Maintenance after handover

Regular inspection catches problems early. Specifically:

  • Flag uneven or tapered frame gaps early
  • Keep product details for future maintenance
  • Release areas for mastic once other trades have finished in them
  • Keep finished joints away from paint, plaster and scrapers

Expect some settlement in the first months. The right product in each joint copes with that while rigid fillers and caulk can crack where movement is larger. If that happens, let us know.

Leaving the mastic snag list to the end squeezes everyone. Clearing snags area by area spreads the work out.

FAQs: Purbrook

Will you plan work around the academic year at somewhere like University of Portsmouth - Langstone Campus?

Yes, holiday working periods are the norm on campus jobs. Tell us which site documents you need, such as RAMS, our insurance certificate or CSCS details, and they’re confirmed with the quote.

Do you cover business parks and estates near Purbrook, such as Dunsbury Hill Business Park?

Yes. Our area takes in Purbrook and its surroundings, with estates and business parks such as Dunsbury Hill Business Park included. To start, just phone 01277 525 020 or email the details over with the unit, the joints involved and your access times.

How long does a job like this take?

We plan the time on site around your programme and access. You’ll have an expected duration with the quote.

Can you come in just for snagging?

Yes. We can work through a mastic snag list area by area before handover, cutting out damaged or poor joints and resealing them.

Will you stick to the specified products?

Specification first, then the maker’s instructions. Preparation, backing and depth follow the product guidance.

Is it fine to apply new sealant on top of old?

No, never. Sealing over old material is one of the classic causes of early joint failure, so everything comes out first.

What does a mastic package typically include?

Inside and out: frame perimeters, movement joints, caulk where called for, sanitary and kitchens in one fixed quote.

Leave it or put it right?

Clearing snags piecemeal is tempting when handover is close. But one planned snagging pass through each area typically clears more for less disruption. We can run snagging as its own phase before handover. A failed joint is easier to put right before damp shows inside. Once water gets in, there’s drying out and making good as well.

No two sites price the same: the joint sizes, the specified product, access and working hours each have a bearing. Send the details and a fixed figure follows.

Why choose Mastic Doctor in Purbrook

  • Products installed to the manufacturer’s instructions
  • Health and safety: CHAS accredited
  • Old sealant cut out, never sealed over
  • Fully insured, including public liability cover

Read what affects the cost and our accreditations and insurance.

How the job changes by surface

Window and door perimeters

Frames sealed into the opening keep rain out of the reveal. They’re sealed with a low-modulus neutral-cure silicone or another product named in the specification.

Internal decorators’ caulk

Acrylic caulk fills internal gaps around trims, boards and frames ahead of decorating. It’s for gaps that stay still and get painted, and we use a flexible sealant where there’s movement.

Facades, frames and programmes in Purbrook

The sea is no more than about 2 miles from Purbrook. Coastal exposure means perimeter and cladding joints work harder than on an inland job, which puts weight on correct joint sizing, priming and a sealant suited to the exposure. At about 60 miles from central London, Purbrook is within reach of the capital. 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.

For contractors refurbishing units at places like Dunsbury Hill Business Park, which lies north-east of Purbrook, the mastic covers cladding panels, roller-door and window perimeters. University estates such as University of Portsmouth - Langstone Campus, 5 miles south of Purbrook, tend to have a rolling programme of new buildings and refurbishments, each with window perimeters and facade joints to seal.

Purbrook is about 2 miles west of Havant, in Hampshire. We send applicators to Purbrook for mastic packages. 723 places across Hampshire fall within our area, Purbrook among them.

We take on mastic packages across the PO7 and PO6 postcode area, whatever the building. If your site is on London Road, Bliss Close and Delius Walk or close by, we can quote for mastic packages. Close to Purbrook, our area also takes in Purbrook Heath (1 mile west), Widley (1 mile south-west), Waterlooville (1 mile north), Farlington (2 miles south) and Bedhampton (2 miles south-east). Bigger towns within reach include Gosport (7 miles south-west), Eastleigh (15 miles north-west), Fareham (7 miles west), Horndean (3 miles north), Hedge End (12 miles west) and Petersfield (10 miles north-east).

Around Purbrook

Recent enquiries here include premises near The Denmead Queen pub and Crookhorn College. The closest station to Purbrook is Bedhampton station, roughly 1.9 miles south-east of the centre. Well-known places in the area include Warblington Castle (3.3 miles south-east) and World War I Remembrance Centre (2.7 miles south). For a walk, there’s Southmoor Nature Reserve and Portsdown Hill.

Map of Purbrook © OpenStreetMap contributors

Building owners, agents and FMs in Purbrook

Planned maintenance programmes are welcome: resealing failed joints building by building, on a schedule that suits your budget. Purbrook can form part of a wider programme.

Whether you are a managing agent, a property factor or an owner’s representative: send the details, accept a fixed quote, and we carry out and guarantee the work. Keys, access and contacts can be agreed in advance.

When to call us in Purbrook

Three-sided adhesion is a frequent fault on new work. Fixed to three faces, the sealant rips the first time the joint opens.

Any of the following is a good reason to get the joints checked over:

  • A long mastic snag list close to completion
  • Internal caulk splitting as the building dries out
  • External joints sealed in damp or cold conditions that are now failing
  • Different trades sealing to different standards

Extensions at sites like Queen Alexandra Hospital, 2 miles south-west of Purbrook, normally sit beside working departments, and the mastic follows strict access rules.

What to look for in a quote

  • The named product and why it was chosen
  • Is depth set with backing rod, or bond-breaker tape in shallow joints?
  • Their plan for phasing and protecting the area
  • Proof of insurance

How to choose a sealant contractor

Diagnose, treat, sign off

We follow your site rules from the start: signing in, inductions and any permit to work. Once we are cleared to begin, the joints are worked through in the order agreed with your site contact. For a town like Purbrook, we try to group jobs for the same client into one visit. Tell us when the building is open and we will plan to suit.

  1. First we look at the scope on site or from drawings.
  2. A fixed quote sets out scope, products and phasing.
  3. Paperwork is agreed and applicators are inducted on site.
  4. We seal plot by plot or floor by floor in line with the programme.
  5. Any frame gaps or issues outside our scope are flagged to the site team.
  6. Final snagging is completed and the 12-month guarantee applies.

Before we start on site

  • Share your working hours and any access restrictions
  • Share the asbestos register for older buildings
  • Have the specification and drawings to hand

Quotes

Need a figure for a tender or a budget? We will quote against your scope and drawings you can plan around. If you have questions first, call the office on 01277 525 020 or email us.

Ask for a quote

Related advice

Accreditations

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