Call Now
Website
Call
Business Details
50+ Years
experience
Emergency
services
Trusted HVAC & Plumbing Services in Northville, MI
The Long Companies have been delivering quality mechanical, plumbing, and HVAC services since 1949. Our family-owned business operates three specialized divisionsLong Mechanical, The Long Companies, and Long Mechanical Servicealongside a retail kitchen and bath design gallery in Northville, Michigan. With over 70 years of experience, we serve residential and commercial clients across Metro Detroit, Southeast Michigan, and the Midwest. Our team of licensed professionals handles projects ranging from industrial process piping to home plumbing repairs, emphasizing quality workmanship and exceptional customer service. We prioritize staying current with industry advancements to provide reliable solutions, including 24-hour emergency services.

Our commitment to integrity, competitive pricing, and customer satisfaction has earned us a trusted reputation and consistent client referrals. We maintain transparency in all interactions, ensuring clients understand their projects' scope, costs, and timelines. Our commercial clients benefit from preventative maintenance programs that minimize downtime and extend system longevity. Residential customers receive personalized attention, from fixture selection to emergency repairs. Founded on the principles of service and integrity, we continue to uphold our legacy as a multi-million-dollar corporation while maintaining the personalized touch of a family business.
Services
HVAC Installation Plumbing Repair Emergency Services Kitchen Remodeling Commercial Maintenance Water Heater Replacement Sump Pump Systems Air Quality Solutions Furnace Tune-Ups Gas Line Installation
Details
  • Year established: 1949
Highlights and features
  • We offer 70+ years of experience in mechanical, plumbing, and HVAC services.
  • Our team provides 24/7 emergency service for urgent client needs.
  • Competitive pricing with transparent cost breakdowns for all projects.
  • Skilled technicians use advanced diagnostic tools for accurate repairs.
  • We guarantee satisfaction with preventative maintenance and service contracts.
Associations and certifications
  • EPA Lead-Safe Certified Firm
What people say
Promptly, courteously, fair price Professional manner, reasonable price Quick repairs, helpful answers Hometown friendly attitude Excellent choice for service
Services
HVAC Installation
We install energy-efficient HVAC systems for residential and commercial properties, including furnaces, air conditioners, and air quality solutions. Our technicians recommend optimal systems based on client needs, ensuring proper sizing and energy efficiency. Services include Bryant, Daikin, and Mitsubishi brand installations with warranties and maintenance support.
Plumbing Repair
Our licensed plumbers handle urgent repairs for leaks, clogs, and system failures 24/7. Services include sewer cleaning, water heater replacement, and gas line fixes. We use diagnostic tools to identify issues quickly and provide transparent pricing for residential and commercial clients.
Commercial Maintenance
We offer scheduled maintenance contracts for commercial HVAC and plumbing systems to minimize downtime. Services include inspections, tune-ups, and emergency repairs without service fees for contract holders. Our technicians service rooftop units, chillers, and boiler systems across Metro Detroit.
Kitchen Remodeling
Our retail gallery provides kitchen and bath design, fixtures, and remodeling. Services include layout planning, product selection, and installation of sinks, faucets, and decor. We combine functionality with aesthetics to enhance residential spaces using quality materials.
Sump Pump Systems
We install and repair sump pumps and backup systems to prevent basement flooding. Services include pedestal and submersible pump options, battery or water-powered backups, and maintenance. We assess client needs based on location and water risk factors.
People
Allison Long Burns
President
Third-generation owner with leadership experience in expanding the company's commercial projects. Committed to maintaining the family legacy of service and integrity while modernizing operations.
Jim Long
Former President
Led the company through decades of growth, emphasizing technical expertise and customer satisfaction. Instrumental in establishing commercial service divisions and industry affiliations.
Virginia Long
Founder of Kitchen & Bath Division
Pioneered the retail design gallery, focusing on home remodeling solutions. Her vision expanded the company's offerings to include fixtures and decor alongside core plumbing services.
Glenn C. Long
Founder
Established the business in 1949 as a residential plumbing service. Built the foundation for the company's reputation through hands-on service and community engagement.
Lois Long
Co-Founder
Managed administrative operations and finances during the company's early growth. Her organizational skills supported the transition from a home-based business to a multi-division corporation.
Questions
What areas do you service?
We serve Metro Detroit, Southeast Michigan, and Midwest states including Ohio, Indiana, and Illinois for residential and commercial projects.
Do you offer emergency services?
Yes, we provide 24/7 emergency HVAC and plumbing services with immediate technician dispatch for urgent repairs.
What financing options are available?
We offer 12 months same-as-cash or 120 months at 9.99% interest financing on Bryant installations, with loan amounts starting at $1,000.
How can I schedule service?
Call 248-349-0373 during business hours or use our online service request form for prompt scheduling with a technician timeframe provided.
Are your technicians licensed?
All plumbers and HVAC technicians are licensed, insured, and trained in the latest diagnostic tools and repair methods for quality service.
Do you provide maintenance contracts?
Yes, commercial clients receive discounted service fees and priority scheduling with our preventative maintenance contracts for HVAC and plumbing systems.
Reviews (7)
Matt G.
Feb 05, 2022 Report
We have lived in Northville for 20+ years, and have been long time customers of Longs. Needed a service call today, and as always received a quick response. Service Tech, Jeff J., was outstanding. Friendly, professional and knowledgeable Services: Plumbing leak detection, Plumbing pipe repair
Megan Lockart
Jan 06, 2022 Report
Long's plumbing was recommended by our family friend when our furnace went out in December for a few days. The furnace needed to be replaced completely. They were able to replace it the same day they came out, in about 4 hours! Very professional and helpful.
Andy Salazar
Dec 02, 2021 Report
Wanted to tell you what a fantastic job Ashly does on your phones. I literally talk to 300+ Shops a week selling software for service providers, and I am (unfortunately) surprised by this great Customer Service! She was: both professional & accommodating, and sincerely warm/friendly. answered what questions she could; was very informed If she is any reflection on the caliber of people you have on your team, then you are hands above many other shops; both bigger and smaller, it was truly a pleasant experience
Kelley Rays
Sep 18, 2021 Report
They were able to get us on their schedule for a leak in our plumbing. Jason was thoughtful on his approach to finding and replacing our copper plumbing with new piping. Despite having to cut a hole in our drywall and work in the ceiling, they left the space clean and we are leak free. Thank you! Service: Plumbing leak detection
Chase Schuler
Sep 03, 2021 Report
I had an install of a new furnace today. There was a residual issue with the AC airflow after the install. Jeff J came to my house after hours and thoughtfully and kindly fixed the issue. He was responsive, professional, and good natured about it. I was not charged for the after hours fix and couldn't be happier. When things don't go perfectly at first, the best outcome is a responsive technician who solves the problem. Jeff did that with a smile. Five stars, great company, great value. I will refer relatives and friends.
D. Thill
Aug 21, 2021 Report
First time using Long Plumbing and I couldn't be more pleased. Spoke to Ashley regarding drain issues that I was experiencing and she reassured me that they could get job done. That same day 2 gentleman showed up and resolved all of my plumbing issues, poor drainage and leaking pipes, in just a couple of hours. I really appreciate the entire effort of the Long Plumbing team!
Jackie Gusfa
Aug 04, 2021 Report
Hands down Long Plumbing, Heating and Cooling are just the best! Of all the service providers we have had in all the the places (multiple states) they exceed expectations every time. The technicians are salaried not commissioned they fix what ever you need the right way the first time. I wish they would move to Georgia with us. They replaced our old unit and added an extra upstairs unit per our request( hubby likes to sleep cool) and did everything perfectly they are tidy neat and clean workers even their trucks are immaculate!

I had a small bathroom remodel and the designer and team were fantastic! we were treated like it was an important job. I feel completely comfortable with everyone they sent to my house and have even left on occasion. Cannot say enough good things! They are the best!