"KAJ Construction replaced all the windows, siding & moulding on the outside of our house. After 30 years of New England winters, our wooden clapboards were rotting & no longer held paint and our wood windows were mostly stuck or also rotting out. We selected KAJ Construction based on a neighbor's strong recommendation and we were very happy with the results. Kevin came over to assess the scope of the project and presented us with a clear & reasonable bid. Alessandro watched over his employees carefully and came to the job-site regularly to make sure everything was done properly. Edgvar and his crew were professional, efficient and very industrious, working 6 days a week (weather permitting) from sun-up to sun-down. They made repairs on the fly as necessary as they discovered them and cleaned up carefully at the end of each day. We wholeheartedly recommend KAJ Construction and would use them again for any further projects."

- Andrew Dawson

"KAJ Construction recently replaced the original exterior cedar shingle siding, storm doors and most of the windows on my two-story 1950’s cape style house. They installed James Hardie Siding and Harvey windows. I’m really pleased with the process and the results. It’s like a new house! Kevin managed the specs and quoting very professionally and collaboratively, sharing his construction and design expertise as he guided me through many project decisions. He provided clear details about how KAJ Construction would approach the project, materials, extent of work, and expected schedule. The pricing was very competitive, and the work proposed was more thorough and in-line with what I envisioned, compared with other quotes. KAJ Construction connected me with knowledgeable and responsive material suppliers for windows, doors, etc and coordinated all the deliveries, so things went smoothly. They took care of all the required permits. The project happened on schedule, with the crew showing up on time every day, just one day missed because of awful weather, and the crew came Saturday to make up for it. They were pleasant and professional, careful to take care of the property and clean up every day, and respectful, friendly with my neighbors. The quality of workmanship was excellent, including some needed repairs to exterior overhangs and underlying wall surfaces, fabricating and installing new interior trim for all the new windows, and transforming the covered porch- raising the ceiling, and bringing it into this century. K KAJ Construction's owner, Alecandro, was frequently onsite. He was great to deal with and kept me updated, checked in frequently. He took care of the few minor glitches (inevitable with an older home and subs) and the small list of “punch-list” items quickly and without issue. Basically, the entire KAJ Construction team was great to work with – knowledgeable, skilled, professional, pleasant, happy to answer questions and work with me as things came up. During the entire process, they were where they said they’d be, doing what they said they’d be doing, when they said they’d be doing it. There were no surprise expenses. I never had to chase them. KAJ Construction exceeded my expectations and I’d be glad to work with them again on a future project."

- hannahlee03

"KAJ construction replaced the siding on our large townhouse condominium with James Hardie siding after the original fiber cement siding failed due to a manufacturing defect. They proposed only the work that was necessary and came in at a very good price. Unfortunately pricing for siding replacement seems to be a free-for-all and prices vary widely - some of the estimates we got were outrageous. KAJ Construction is very professional - they were reliable and careful about taking care of the property when they worked. They cleaned up daily and we never had a problem with nails or other debris. The workers who installed the siding were meticulous - measuring every board and every space. The job was done well, at a fair price, and they were there every day unless weather prevented it. I would use them again and recommend them with confidence."

- Carol

"KAJ Construction was organized and professional from start to finish. They do an excellent job on being up front with scheduling the work and timeline to completion. During construction, they are clean and careful of existing conditions. Overall, if you want a exterior siding/window contractor that will get the job done, use them!"

- Ryan

"Exceptionally professional, courteous, and respectful of my home and property. High degree of transparency and communication along every step of the process. Their pricing was extremely fair. Workmanship is amongst the best I've seen. I would use KAJ Construction again and would recommend them without the slightest hesitation to anyone else."

- Greg

"KAJ Construction is a top notch pick for siding and window installation! The KAJ Construction team is professional, prompt, and detail oriented like no other! It was a fantastic consumer experience to have the KAJ Construction team re-side our home in Melrose and install new windows and a front door. Since I work from home, I was a daily witness to the work-ethic of the KAJ Construction employees. They worked tirelessly through a significant heatwave of 90+ degrees, putting in long and very productive days, despite the challenges of the heat. They were responsive to any teeny question or concern that came up- although there really weren't any! I was struck by the positive working relationship between the site manager, company owner, and laborers; everybody was a team player "all-the-way"!. KAJ Construction was candid about timelines and budget, and communicated clearly and with transparency which eliminated the distress that often accompanies home improvement projects. And the result is amazing! KAJ Construction does not cut any corners. The job is solid! Our home looks like new, feels like new with the improvement in insulation and windows, and the increased curb appeal is evident as well. We were referred by the family next door.... and more families in the neighborhood will be using KAJ Construction for their home improvement projects as well. I am happy to highly recommend KAJ Construction."

- bethmwalsh

"I am so happy to have discovered the KAJ Construction team on Houzz. My experience with KAJ Construction was extremely positive. I contracted them to replace my house vinyl siding with James Hardie Siding and install new windows and exterior doors. After getting quotes from a variety of contractors, KAJ Construction offered fare pricing and instilled confidence in their ability to get the job done accurately and efficiently. Kevin and Alecandro take great pride in their work; and pay close attention to detail. Alecandro’s team works quickly, yet with careful attention to craftsmanship. Their experience is evident in the results of their work. As with most projects, there were a few special requests and unique details to overcome. KAJ Construction handled them like a true professional. I have worked with several different contractors on different projects over the years with mixed levels of satisfaction. KAJ Construction exceeded my expectations. KAJ Construction is honest, knowledgeable, and they stand by their work. These are qualities that make KAJ Construction exceptional. I give KAJ Construction high ratings and would not hesitate to recommend their service to friends and hire them again for future projects."

- Steve

"I recently had all my windows (22), siding (two story cape w/dormers) and all existing gutters replaced using KAJ Construction. I had three separate quotations done before choosing KAJ Construction and I am glad I did. When it comes to home renovations this was bar far the best experience I have ever had. After reviewing my options with Kevin, I was given a detailed list with the total project cost and timeframe of completion. The project cost was on point as quoted and the only additional costs incurred were extra things that I had requested to be done. This never happens as most know. As for Alecandro and his crew that were on the project. I can not say one negative word/comment about them. They were always so professional and the craftmanship and attention to detail was excellent. From start to finish right down to making sure the gates to the fenced in back yard were always closed as for I have two dogs (who by the way loved them). The construction started on March 3rd and was completed April 1st. They had snow, sleet and rain to contend with and the project still stayed on track. I will be referring and contacting KAJ Construction for any future projects and to quote "this is and was not a paid testimonial."

- Lynne Swanson

"KAJ Construction are a first class professional building contracting company. They are skilled, reliable, and carry high level of integrity. The company completed a 25 square complete demolition of vinyl siding and restoration on my 1905 New Englander styled home, installing clear white cedar shingles. Now people stop and gaze at the home's beauty. I have had dozens of compliments from neighbors and friends. From the first meeting with Kevin through hammering the final nail the company did things right. They provided a highly skilled carpenter staff who understood the job and worked tirelessly and to complete the job. The 3 man crew showed up every day for 7 weeks until the job was complete. Taking 0 time in between to tend to other jobs. The crew started at 8 AM (winter sunup) and finished each day at 5 PM (in the winter darkness), never extending breaks or wasting time. The carpenters listened to my needs and responded by performing each task with perfection. I highly recommend Alecendro and KAJ Construction, and their talented carpenter staff. I plan to utilize their talent again in the future."

- Amy’s Real Estate

"I am very happy with the job KAJ Construction crew did at my house. They wear nice and professional, always will recommend them!"

- Milford

"Alecandro and his crew installed Hardie siding on two houses in my neighborhood, prior to mine, and that was my recommendation. His crew worked Monday - Friday and some Saturdays, from early morning to early evening, on the hottest of days. They cleaned up the area every day. Concerns and questions were answered and addressed promptly. No problem making contact with Alecandro or Kevin, the Project Manager. The job moved along at an impressive pace. Every day, I saw progress. I am happy with the way the house looks with the new siding, and even the neighbors have commented on it."

- L Hodgin

"I usually do all my own work on my house, but this project was more than I wanted to tackle myself. We saw the work KAJ Construction was doing on a house down the street and contacted them through that. Kevin is an old school salesman. Which was a little awkward during social distancing. He likes to work face-to-face and shake hands. Though that wasn’t always possible during the pandemic, Kevin was very attentive and easily accessible for any questions or changes as the job progressed. Alecandro and his crew were prompt, professional and very hard-working. They asked if they could work a Saturday and stay late a couple of days. They also always wore masks, which was greatly appreciated. The finish work is very tight. I’m really happy with how everything looks. We hit a snag with a third-party vendor getting a door that was a little too big for the opening. Kevin helped square that issue away, and KAJ Construction held off on requesting any additional payment until everything was completed to my satisfaction. I strongly recommend KAJ Construction to anyone interested in installing fiber cement board siding. They definitely know what they’re doing."

- HU-758177908

"KAJ Construction installed Hardie siding and new doors on our house. I would highly recommend Alecandro and his crew. Our job was challenging because we had a completion deadline for a major event. They were on time each morning, worked long hours and cleaned up after themselves each day. There were a few obstacles that required quick thinking on Alecandro's part, and he handled things timely and professionally and got the job done. FIVE STARS!!"

- Ann-Marie Rogers

"KAJ Construction and Kevin Foley did a great job with our home. We had them replace windows, plywood and install new siding. They also rebuilt our entire portico on the front of the house. The workers were very professional and courteous, keeping our house and property clean. They stayed on the job till it was complete and it turned out better than we had expected. Alecandro is very knowledgeable and talented and ensured the job was done correctly. We were so pleased, we had them frame and finish a new bedroom interior and hallway with new doors and trim. You won't be disappointed."

- Mike Lovezzola

"I am extremely pleased with the work performed by Alecandro and his crew. They installed over 30 windows and doors, and installed 200 linear feet of exterior cedar. This was a high end job priced competitively - a window wall, eyebrow window, hardwood interior trim, exterior PVC trim. I have done my share of trim carpentry and appreciate exquisite quality when I see it. I got it here. There's no caulking bad joints with stained hardwood. They were as clean as could be - I've never seen a contractor have one guy hold a vacuum to catch the dust made by a saw. They cut no corners. I didn't plan on replacing the rest of the windows for a few years, but given the quality I got I'm proceeding with the rest now."

- Jeffrey Sutherland

"KAJ Construction provided us with exceptional quality and job performance. Their crews worked efficiently and kept our job site very clean. Alecandro was always available to discuss the job and has a great attention to detail. I would highly recommend working with KAJ Construction!"

- Concept Building

"We hired KAJ Construction to replace rotted soffit on our old (1860s) house. The whole process was a breeze, easy and professional. We received a quote that was really competitive and fair from Kevin, their Project Estimator. He was very courteous and thorough, which really put us at ease. Honestly, it was an easy decision to go with this company. On the first day of construction, the crew arrived on time and the owner of the company came with the crew to brief us of the process. The crew worked seamlessly and efficiently. At the end of each day, the crew would clean up and leave the place spotless. The final result was AWESOME. They did a fantastic job and the quality is impeccable. I cannot recommend this company more. Give them a call, they won't disappoint. We sure will be calling them in the future whenever we need something done!"

- Erina A

"I would highly recommend KAJ Construction for any home construction project! I hired them recently to replace some siding and replace the trim on the windows. Prompt, fairly priced, beautiful high quality work, excellent clean-up, professional, personable, and fast! When I need home improvements in the future I will look no further. My house looks great! Thank you KAJ Construction!"

- Lisa McRae

"KAJ Construction is a very good company. They are great a siding, installing windows & doors, caulking, Hardie siding, and framing. KAJ Construction works clean and fast, and with a smile the whole time. I plane on using them on my next job. I would recommend them to anyone."

- Jared Rollins

"The work referred to was the installation of Hardie siding on a 21,000Sq Ft commercial building. The work was award winning and the installation was quick, clean and efficient. A pleasure to work with Alecandro."

- Tom Jones

"These guys are super professional, clean and just plain nice people to have work around your home. We hired them for a new home we were building and they did it quickly and with great craftsmanship."

- Futuro