Business Details
Trusted Roofing & Siding Experts in Scotch Plains, NJ
MJ & Sons has been a trusted name in exterior construction since the late 1990s, serving residential and commercial clients across northern New Jersey. Founded as a family-owned business, we prioritize craftsmanship, affordability, and personalized service, treating every client as part of our extended family. Our team of certified professionals specializes in roofing, siding, gutter systems, and decking, using premium materials to enhance the beauty and durability of your property. With over three decades of experience, weve completed thousands of projects, maintaining a commitment to innovation and quality. We understand the stress of home renovations, which is why we guide clients through every step, ensuring transparency and satisfaction. Our reputation for reliability and expertise has been built through consistent delivery of exceptional results, even for complex or unconventional projects.Headquartered in Scotch Plains, we serve communities like Westfield, Garwood, Summit, and Cranford, combining local knowledge with industry-leading standards. As a family-operated business, we remain dedicated to the values that founded us: integrity, hard work, and unwavering attention to detail. Our 45+ trained staff members undergo continuous professional development to stay at the forefront of industry advancements. From initial consultation to project completion, we focus on transforming your vision into reality while relieving the burdens of construction. This enduring philosophy has earned us 3,000+ happy clients and a legacy of trust in the communities we serve.
Services
Roof Installations
Metal Roof Installations
Siding Installation
Gutter Repair
Decking & Railings
Highlights and features
- 30+ years of experience in residential and commercial exterior construction
- Certified craftsmanship with continuous professional development for staff
- 45+ trained professionals handling projects of any scale
- Free consultations to guide clients through every project phase
- Specialization in diverse materials including metal, vinyl, and cement board
What people say
Honest and reliable contractor
Knowledgeable about the product
Stress-free experience
Attention to detail
30+ years of experience
Services
Roof Installations
We specialize in complete roof installations using diverse materials like asphalt shingles, metal, and flat membrane systems. Our certified technicians ensure proper ventilation and waterproofing, extending your roof's lifespan while enhancing energy efficiency. With hundreds of successful installations, we deliver durable solutions tailored to your home's architectural style and climate needs.
Metal Roof Installations
Our metal roofing expertise includes standing seam, corrugated, and metal shingle systems designed for superior durability and energy efficiency. We offer customization in color, profile, and finish to match your property's aesthetic while providing unmatched protection against extreme weather conditions. Backed by manufacturer warranties and our 30+ years of experience.
Siding Installation
We install premium siding materials including vinyl, fiber cement, wood shakes, and metal panels to enhance curb appeal and insulation. Our team ensures proper installation with attention to detail in trim work and moisture barriers. Available in multiple styles and colors to complement your home's design while requiring minimal maintenance over decades of use.
Gutter Repair
Our comprehensive gutter solutions include repair, replacement, and maintenance of seamless gutter systems. We address leaks, clogs, and improper drainage using high-quality materials like aluminum and copper. Properly functioning gutters protect your foundation and landscaping from water damage, with our technicians ensuring optimal slope and downspout connectivity for maximum efficiency.
Decking & Railings
We design and install durable decking systems using composite, pressure-treated wood, and exotic hardwoods with matching railing solutions. Our custom designs maximize outdoor living space while meeting safety standards. We handle structural repairs, surface replacement, and aesthetic upgrades to restore functionality and beauty to aging decks and porches.
People
Jaime Guallpa
Founder
Jaime Guallpa founded MJ & Sons over 30 years ago, growing it from a small team into a respected regional contractor. He oversees operations while maintaining hands-on involvement in complex projects, ensuring adherence to quality standards. His leadership emphasizes continuous improvement and customer-centric service.
Questions
What areas do you serve?
We serve Scotch Plains, Westfield, Garwood, Summit, Plainfield, Cranford, Kenilworth, and surrounding areas in northern New Jersey.
Are you licensed and insured?
Yes, MJ and Sons maintains all required licenses and insurance coverage for residential and commercial exterior construction projects.
Do you offer free estimates?
Yes, we provide free, no-obligation estimates for all roofing, siding, and exterior renovation projects.
What materials do you work with?
We work with asphalt shingles, metal roofing, vinyl siding, fiber cement, wood shakes, composite decking, and various gutter materials.
How long does a typical roof replacement take?
Most residential roof replacements are completed within 1-3 days, depending on the size and complexity of the project.
Can you handle insurance claims?
Yes, we assist with insurance claims documentation and work directly with adjusters to ensure proper coverage for storm damage repairs.
