Thank you for choosing Mike Martin Window Systems. As a family run company, we appreciate your choice to support the Cornish economy and buy local rather than opt for one of our larger national competitors. We hope that you are pleased with your finished products and are also satisfied with the service that we have provided up to this point.

It is important for us to let you know that just because your account is settled, we are still here if you need us. Investing in windows, doors and other home improvement products can come at a large financial cost and also be a lengthy journey. All of our products are made to measure, and no two jobs are ever the same. With this is mind, we have compiled a list of frequently asked questions to help you understand when to contact us, what to do if you find faults and how to maintain your new products. See below:

1. Your installation team has finished and we have paid our balance. We have now noticed faults or imperfections with the fitting or products.

We ask all customers to check the installation and products thoroughly and report any snagging issues within 7 days of the final installation date for a priority response. If reported after 7 days, we will report your issue to our service team to be addressed as soon as we have an engineer available. Please report all issues to or upload photos and a description here SUPPORT

2. We have marks or scratches on our glass, is this normal?

All double-glazed units are quality checked at the manufacturing stage by our suppliers prior to transportation to our warehouse in Cornwall. Unfortunately, and inevitably, the glass is sometimes damaged whilst in transit on the lorry or during the installation process. We ask our customers to check the units carefully based on the accepted tolerance levels within the Glass and Glazing Federation guidance. Details of how to check your units can be found in our customer area on our website VISUAL STANDARDS. If you feel that your glass falls outside of these tolerance levels please email photographs of the affected area to or upload photos and a description here SUPPORT

3. I cannot lock or unlock my door. Can you help asap please?

We hate to think of your property being nonsecure. Please call the office during normal opening hours and we will prioritise your request. Unfortunately, we do not offer an out of hours or 24/7 emergency service but will get to you as soon as we can.


4. Do my windows and doors require maintenance and cleaning? What do you recommend?

Yes, similar to buying a new car, your products will require some regular TLC. The customer has a responsibility for maintaining their own product to ensure that the guarantee is valid for the duration of the cover. You can find a handy maintenance and cleaning guide in the customer area of our website MAINTENANCE GUIDE.


5. We are pleased with the service and products and would love to recommend you to a friend.

As a family business that has operated in successfully in Cornwall for over 35 years, recommendations are still our number one source of new enquiries. To help us to maintain our reputation, we simply ask our customers to tell their friends and family about our company, especially if they are considering some home improvements. If you really wanted to thank us, Google reviews are the best place to let others know how we did. Google reviews are valuable to our team and very hard to come by, please feel free to take two minutes to let us know how we did here GOOGLE REVIEW.


6. I am not happy with the service and or product and wish to make a formal complaint.

We have a sales team, a technical team, and a customer service team all at hand to deal with day-to-day issues.  Please email or call 01726 861737 prior to making a formal complaint. If we are unable to resolve the issue using any of these teams, customers have the option to escalate their complaint to a senior manager. We take all complaints seriously and will act promptly. Details of how to make a formal complaint can be found within our customer area here COMPLAINTS.


Once again, thank you for choosing Mike Martin Window Systems. If you have any questions regarding any of the above or would simply like to make any suggestions on how we can improve our service, please do not hesitate to contact us at

What our customers say

Very satisfied

ne replacement UPVC window. Very satisfied with quick service and customer care.


Warner, K

Complete satisfactory

Replacement of bathroom window completed satisfactorily by experienced team.


Green, S

Very helpful and pleasant to deal with

Window arrived much quicker than anticipated. Everyone we have had contact with, salesman, surveyor, fitters and the office staff have all been very helpful and pleasant to deal with.


Mackie, P

good workmanship and very professional

Everything went well, good workmanship and very professional.


De-Boer, H

Professional and polite

We were very happy throughout the process, all the team were professional and polite. We were informed what was happening at every stage by each department. We would recommend Mike Martin.


Digby, C

Highly recommended

We used Mike Martin Windows to install two replacement double glazed windows at our house. The installation was undertaken to the agreed schedule and budget. They acted very professionally, and the work was completed to a high standard. They kept us well informed throughout the process, before and after the installation. Highly recommended.


Collins, R

Very friendly company

Very friendly company, really good installation, any issues are resolved quickly. Would highly recommend.


Coveney, A

Very nice helpful fitters

Fit new windows and French doors done on day booked although took 1day longer due to very bad rainfall weather very nice helpful fitters.


McPhail, L

Great value

Great value and a good team throughout



Happy with the installation

We were happy with the installation, it was done to schedule and budget, they cleaned up after themselves. After they had gone, we noticed a couple of marks within the glass, we took photos sent them in & within a couple of weeks the panes were replaced without question. Overall, from start to finish the service was excellent. Our thanks to all members of staff involved.



Friendly and professional

Very smooth process from start to finish. All employees friendly and professional. Excellent customer service calls throughout to arrange installation dates etc. Wouldn�t hesitate to recommend MM windows.


Rickard, J

Rectified issue quickly and efficiently

4 new windows and 2 sets of patio doors. One set was stiff to open and the installer rectified issue quickly and efficiently. Would highly recommend this company.


Roberts, T

Very helpful, friendly & polite

Windows & doors fitted, this was completed to agreed original schedule & budget. All staff very helpful, friendly & polite. Happy with level of communication which included aftercare. The few issues regarding the finished product were dealt with in a prompt & satisfactory manner.



Friendly, courteous, and professional

Really good fitters, friendly, courteous, and professional. They fitted 2 new doors. A small problem was resolved without issue. I’d use them again and recommend to others.



First rate

Local company whose communication, fitters and aftercare was first rate. I would recommend to anyone; they exceeded our expectations.


Moody, S

Great advice

Great advice when choosing my windows, Mel was really personable and down to earth. No sales were pushed at all, really nice installers, friendly and tidy. There was a brake on the old window frame which was fixed beautifully.


Assemakis, D


Fitted new front and rear doors.


Gilbert, A


Everything was installed well, good communication and minor issues resolved to my satisfaction.


Bulford, T

Very pleased with the result

MMW fitted a replacement roof lantern for us. They were really professional from providing the initial quote to completion. Could not fault them. They discussed our original suggestion with us and came up with a far more suitable one. Very pleased with the result.
April, 24

Wycherley, F

Very efficient and courteous

I would recommend this company, they were efficient and courteous at all times and did an excellent job.

April, 24

Bowman, S

Good Standard

All done to a good standard with friendly team.
April, 24

Terry, P

Very professional

All workmen were courteous, we ran into a problem, but it was quickly dealt with and overcome. Very professional Company.

April, 24

Smith, T

New door fitted

New front door fitted. All done to the agreed schedule and budget. Courteous staff. I would use them again.

April, 24

Tew, J

Excellent A*****

Luke was so helpful and accommodating when choosing two doors for our old cottage. He was patient and nothing was too much trouble. They were very efficient in getting the doors measured and made up. The 2 guys that came to fit our doors were so nice, and I was amazed how clean and tidy they were. Communication was brilliant, we were kept updated all the way through the process. Excellent A*****

Trivett, S

Very professional and friendly

Installed 6 windows within agreed budget and schedule. All staff very professional and friendly. No issues.

April, 24

Kirkham, S & K

Very pleased with workmanship

Fitted a new back door in good time and I am very pleased with the workmanship.

April, 24

Crowley, E

Good clean job

They arrived on time and did a good clean job.

April, 24


Very highly recommended

Excellent materials and workmanship. Very highly recommended
April, 24

Skinner, H

Highly recommend this company

Installing double-glazing. Done on time and with care and attention to detail.
March, 24

Ling, T

Local highly recommended business.

Local highly recommended business. Friendly staff, good communication, doors fitted by experienced professional staff. Care taken of property whilst fitting.
March, 24

Bindon, S

Very happy great products

Very happy great products
March, 24

Powell, T

First class team

First class team
March, 24

Twyman, George