The Mastic Doctor team standing beside their branded vans outside an office building
Argyll and Bute · Scotland

Portnahaven mastic sealing

We carry out mastic sealing for building owners, managing agents and housing associations in Portnahaven. Send details for a fixed quote.

  • Old repairs sealed over failed mastic
  • Window mastic that has split and shrunk
  • Worn sealant at communal door frames
1
Send details
Send the specification, photos or a marked-up plan.
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
Signed off, with 12 months’ guarantee.
London, the South East & Scotland
Constructionline member
Fully insured: £5m PL

Mastic sealing for Portnahaven sites

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

Why deal with it now?

Piecemeal repairs over the years often leave mismatched sealant. Resealing a whole building gives a consistent finish and one 12-month guarantee. Around smaller places like Portnahaven, halls, stores and seasonal buildings may not be checked often, so a failed joint has time to cause damage. Resealing early avoids that.

Whether it’s a single area or a whole estate, the same things set the price: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote and we will put a fixed figure on it.

What you get with us

  • Health and safety: CHAS accredited
  • 12-month guarantee on workmanship
  • Colours chosen to suit frames, cladding or finishes where possible
  • Products installed to the manufacturer’s instructions

See what affects the cost and our accreditations and insurance.

Mastic sealing in Portnahaven

In buildings from before 2000, some old mastics contain asbestos. We check the asbestos register or survey before any old sealant is cut out, and work stops for testing if there’s any doubt. We don’t remove asbestos-containing materials. We work on external wall and movement joints, communal kitchens and washrooms and shopfronts below residential blocks, and the usual reasons a site gets in touch are no planned programme for sealant and communal area joints that look neglected. Whether you call it commercial sealant work, mastic application or joint sealing, the work in Portnahaven is the same: failed joints cut out, faces prepared and the right sealant laid to the right depth.

Around Portnahaven, outside mastic waits for dry weather and the right temperature. We agree a window with some flexibility.

Every job is signed off with a 12-month guarantee. The promise is simple: if our work fails within that year, we put it right.

The Mastic Doctor team standing beside their branded vans outside an office building
Place
Portnahaven (PA47)
Wider area
Argyll and Bute
Guarantee
12 months on our workmanship
Price
Fixed quote, scope in writing
Phone
01277 525 020
Updated
3 November 2026

Common questions from Portnahaven clients

Is a smaller place like Portnahaven outside your area?

Not at all: smaller places are covered as well as towns. Every Scottish council area is within our area. Where we can, we group nearby jobs to make the most of each trip.

Will you price a mastic programme across our Portnahaven portfolio?

Yes. Portfolio-wide programmes are a regular request. Residents are given notice through you, and the work moves building by building.

How soon can the area be used again?

That comes down to the sealant and the temperature. Some products skin over quickly but need longer to cure fully, so we’ll confirm the curing time on the day.

What about access for upper-floor joints?

We talk through access for each building when we quote. Tell us the building height and any access already in place and we’ll confirm the approach in the quote.

How long do sealant joints last?

There’s no fixed lifespan: movement, exposure, cleaning, traffic and the product all play a part. Treat them as maintenance items and inspect them regularly.

Can you take on resealing for a block portfolio?

Yes, that’s exactly who this service is for. We work through buildings in a planned order so you can plan around it.

Can you send RAMS and CSCS details before starting?

We are CHAS accredited, a Constructionline member and carry public liability insurance. For specific documents, tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we will confirm with the quote.

When to bring in a specialist

Using site staff can make sense for a small touch-up, but larger jobs are different: a specialist brings efficiency, a consistent finish and a 12-month guarantee.

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

From enquiry to sign-off

A typical day starts with protection: masking tape along the joint edges and sheeting over anything nearby. On site, the work typically takes a day or two for a single block, longer for an estate programme, and our waste is bagged and taken away as we go. Tell us who will meet us and how to get in at your building near Portnahaven. We’ll confirm the plan with the fixed quote.

  1. We inspect the joints, building by building, and record what has failed and why.
  2. You get a fixed quote, priced per building where that helps your budgeting.
  3. The programme is fixed with you, including dates you can pass on to residents or tenants.
  4. Old sealant is stripped and each face prepared back to firm material.
  5. Backing rod and primer go in where the joint and the product need them, then new sealant is applied and tooled.
  6. Completed joints are inspected and carry a 12-month workmanship guarantee.

What we need from you

  • Confirm the product named in the specification
  • Let building users know which areas are affected
  • For older buildings, check the asbestos register before work

Request a quote

Every job follows the same four steps: send details, get a quote, we seal, guaranteed. To take the first step, speak to us on 01277 525 020 or send details through our quote form.

Get a quick quote

Advice

Signs you need mastic sealing in Portnahaven

Communal entrances and corridors see a lot of wear, and low-level joints get damaged. Regular cleaning wears them further.

Clients normally get in touch after noticing one or more of the following:

  • The same joint failures repeated across a portfolio
  • Draught complaints from residents or tenants
  • Water getting in round frames after rain
  • Communal area joints that look neglected

If you’re responsible for a building such as Portnahaven Church, frame and door mastic needs the same attention as any other property.

What to look for in a quote

  • Is the sealant right for the movement and the substrate?
  • Whether primer will be used where the manufacturer specifies it
  • What level of public liability insurance do they hold?
  • Their approach to joint depth and backing

How to choose a sealant contractor

Surface by surface

Estate-wide resealing programmes

Using the same products throughout keeps the estate consistent.

Commercial and mixed-use buildings

Tenants in commercial buildings need to keep trading so the work is phased.

How the quote is worked out

These are the things that shape the price:

  • Specialist products, such as fire-rated or hygienic sealants
  • Quantities, in metres or numbers
  • Access and working height
  • The size and state of each joint

Quantities, awkward access and phased working all shape the price. Site requirements like inductions and permits play a part as well.

What we need to price the job

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

  • When you need the work done
  • The site address and postcode
  • The asbestos register, for older buildings
  • Specification clauses that apply

Quotes are fixed against the scope you send, so you know the figure before anyone is on site. To start the process, give us a call on 01277 525 020 or email the details over.

Looking after buildings in and around Portnahaven

With the shore within about 1 mile, Portnahaven counts as a coastal location. Sea-facing elevations take driven rain and salt, and their mastic shows it before the sheltered sides do; plan inspections around that. Portnahaven is on Scotland’s wetter western side. The most exposed elevations need checking most often. Programmes allow for wet days.

Around Portnahaven, a planned programme renews failed mastic across a building or estate in one go.

Portnahaven (Gaelic: Port na h-Abhainne) is in Argyll and Bute. Looking for mastic sealing in Portnahaven? We can help. 124 places across Argyll and Bute fall within our area, Portnahaven among them.

If you need mastic sealing in PA47, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. Streets here include High Street, Shore Street and Church Street. Just outside Portnahaven, we also work in Bun Othan (1 mile south), Port Charlotte (6 miles north-east), Bowmore (10 miles north-east), Imeraval (12 miles east) and Port Ellen (13 miles east). Island and remote sites need extra planning, with travel, ferry crossings where needed and weather to allow for, so mention the location when you give us a call on 01277 525 020 or email drawings and photos.

Around Portnahaven

Green spaces nearby include Beinn Tart a' Mhill.

Map of Portnahaven © OpenStreetMap contributors
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