Essex · England
Window Mastic in Great Notley
Our applicators work in Great Notley on mastic around window and door frames, sills and patio doors. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.
- Cracked internal joints between frame and plaster
- White mastic on grey or black frames
- Old mastic that has gone black or come away
How we handle window mastic in Great Notley
There are two joints on most windows. The external joint is the weather seal; inside, the joint between frame and plaster stops draughts and tidies the reveal. We seal one or both, depending on what’s needed. We work on composite doors, uPVC windows and window sills, and people most often call us about black, perished sealant on frames and cracked or shrunken mastic around the frame.
In smaller places like Great Notley, homes range from older cottages to newer houses, with windows to match: timber, uPVC and aluminium. Each frame material needs the right sealant against the right wall.
A one-year guarantee comes as standard.
- Place
- Great Notley (CM77)
- Wider area
- Essex
- Guarantee
- A year, on every job
- Price
- A clear price before we start
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Your questions about window mastic in Great Notley
Do you cover Great Notley for window mastic?
Yes. Our work covers London and the South East, and Great Notley is part of that. Just ring 0345 464 0079 or send us an email with a few details of the job.
Do you work for landlords with property near Braintree station?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. You can ring 0345 464 0079 or email us with the details for a clear quote.
Is the new sealant paintable?
Most silicone cannot be painted. If you plan to paint, tell us first and we can use a paintable sealant where it suits the joint.
Where do you work from?
Mr Mastic is based in Crawley. We cover Great Notley and the rest of Essex.
Will resealing my frames help with draughts?
Often, yes. The gap between frame and wall is a common source of draughts, and resealing inside and out closes it.
When is the sealant fully cured?
It depends on the product and the conditions. Before we leave, we’ll tell you the cure time.
Can I add another job to the visit?
Yes, and it often makes sense. Doing several areas at once is usually more efficient, so mention them when you ask for a quote.
Is it OK to seal over old sealant?
No. The old sealant always comes out first, so the new joint bonds to clean surfaces.
Honest limits
We’d rather tell you now than do work that won’t last, so these are the limits:
- A failed sealed unit that has misted up
- Penetrating damp from a failed cavity tray or render
- Worn gaskets, brush seals or a door that has dropped
If in doubt, call 0345 464 0079 or send us an email and we’ll say what we think.
Surfaces we seal
- Patio & French doors
- Window sills
- Timber windows & doors
- Aluminium frames
- uPVC windows
- Composite doors
Different surfaces, different methods
Aluminium frames
Coated aluminium needs a compatible sealant. Neutral-cure sealant is the safe choice.
Timber windows & doors
Where timber has rotted at the joint, it needs repairing first. If we find rot, we will tell you before going ahead, as that is a job for a joiner.
What affects the quote in Great Notley
The quote reflects the job in front of us. We take into account:
- Which sealant suits the joint
- The number of rooms or windows
- Access and height
- Working hours on commercial sites
No two jobs are quite the same, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all play a part.
What to tell us for a quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- Photos by email, if that is easy
- Access, such as stairs, a lift or height
- Whether it’s a home or a business
- Any previous sealing or DIY work
For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we will talk you through the work before giving you a price.
Looking after it afterwards
How long the joints last depends on use and care. Here’s what we suggest:
- Keep paint and stain on wooden frames in good order
- Wipe condensation off the frames
- Keep paint off silicone joints
- Check the mastic once a year
Keep sill grooves and drainage slots clear, so water can run away instead of sitting against the joint.
A failed joint lets water into the wall a little at a time. Often the first sign is a damp patch inside or flaking paint on the reveal. Catching it early keeps the fix to a reseal.
DIY sealant or a professional job?
If you are set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it does not work out, we can still put it right.
A DIY attempt does not rule out a professional job. We cut it out and start again, so tell us about it when you ask for a quote.
Places near Great Notley
What else we do in Great Notley
How it works
Every visit runs the same way: we look at the joints together, protect the area around them, do the work and tidy away. Most jobs take a morning for a couple of windows and a door. A visit to Great Notley is planned like any other: the time, the access and where to park are agreed in advance. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- First, we confirm safe access to each frame.
- Old, cracked mastic is removed completely, along with any loose debris.
- The surfaces are cleaned and left dry, and primed where the sealant calls for it.
- Backing rod fills deep voids and the sealant goes in on top.
- We tool the joint so water runs off, then clear up.
Before we arrive
- Keep pets and children clear of the area while we work
- Clear the area around the work
- Let us know about parking restrictions
How to get a quote
Getting a quote is simple: let us know the job and the location. A few pictures by email make the job easier to understand.
Advice
Frames and glazing around Great Notley
Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Letting a property close to Braintree station? Then sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. In the older streets around The Church in Great Notley, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. For site and facilities teams at buildings such as White Court School, its window and door frames need their mastic kept sound, just like a home’s.
Great Notley is about 2 miles south-west of Braintree, in Essex. Whether you’re in the middle of Great Notley or further out, we cover window mastic for every kind of property. 644 places in Essex are on our list. For nearby work, see our Chelmsford page, about 9 miles away.
Postcode districts we cover here for window mastic: CM77. If you need window mastic at a property on London Road, Harnham Drive and Colville Close or a nearby road, our applicators can take on the job. We also cover the places around Great Notley: Row Green (1 mile south-east), Young's End (1 mile south), Little Common (1 mile north-west), Rayne (1 mile north-west) and Black Notley (2 miles east). Larger places within reach include Chelmsford (9 miles south), Maldon (11 miles south-east), Witham (6 miles south-east), Camulodunum (15 miles east), Halstead (7 miles north-east) and Great Dunmow (7 miles west).
Local landmarks in Great Notley
In Great Notley, that means homes and buildings near Notley High School and Braintree Sixth Form, The Essex Cricketers pub and Cuckoo Wood. The nearest railway station is Braintree station, roughly 1.6 miles north-east. A little further out are Tudor House Museum (Braintree) (2.2 miles north-east) and William Julien Courtauld Hospital (1.1 miles north-east). Not far away are Phyllis Currie Nature Reserve.
Why act early in Great Notley
Choosing the product is half the job. Interior caulk and bathroom silicone aren’t made for exterior frame joints. An exterior, low-modulus sealant stays flexible in sun and frost. In a smaller place like Great Notley, wherever a wall is exposed, a failed outside joint is a real source of damp. Inside, a split seal lets water into floors and panels just as it would anywhere.
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, any mould to treat, and whether we need extra access for height. Your quote takes all of that into account.
Why Great Notley customers choose us
- Colour picked to suit the job
- A choice of colours where the product allows
- Colour agreed with you before we start
- 4.9 on Google from 180+ five-star reviews
Take a look at what affects the cost or our reviews.