Armstrong HVAC LLC is a family owned HVAC business with more than twenty years of experience with residential and commercial HVAC. We are confident that our knowledge and experience can answer any HVAC questions you have and provide a solution that works for you. As a small business we have the ability to pay close attention to detail and provide excellent results for our customers.
"Very professional and very knowledgeable. Explained everything from the type of problems and the options to fix it. He sent pictures and videos to explain everything. He even found dangerous issues that two other contractors missed. I trust him and will use him for all my HVAC needs in the future."
Brian G on February 2025
Armstrong HVAC LLC is a family owned HVAC business with more than twenty years of experience with residential and commercial HVAC. We are confident that our knowledge and experience can answer any HVAC questions you have and provide a solution that works for you. As a small business we have the ability to pay close attention to detail and provide excellent results for our customers.
"Very professional and very knowledgeable. Explained everything from the type of problems and the options to fix it. He sent pictures and videos to explain everything. He even found dangerous issues that two other contractors missed. I trust him and will use him for all my HVAC needs in the future."
Brian G on February 2025
We install HVAC equipment at an affordable price offering great service and quality work. Additionally, we take on service calls and system diagnostics. Our company takes pride in the work we perform and you can be assured it will get done the right way!
"A pleasure to work with very accommodating and thorough, no high-pressure sales tactics. I will definitely be using them again!"
Brian C on May 2025
We install HVAC equipment at an affordable price offering great service and quality work. Additionally, we take on service calls and system diagnostics. Our company takes pride in the work we perform and you can be assured it will get done the right way!
"A pleasure to work with very accommodating and thorough, no high-pressure sales tactics. I will definitely be using them again!"
Brian C on May 2025
Three qualities all of our people have that make us Northern Virginia, D.C. & Maryland’s #1 Home Service Provider. That’s the F.H. Furr Difference. F.H. Furr is D.C., Maryland & Northern Virginia’s premier plumber, HVAC contractor and electrician. F.H. Furr is A+ rated by the Better Business Bureau and has consistently been voted Best of Prince William County for HVAC, Plumbing and electrical.
Three qualities all of our people have that make us Northern Virginia, D.C. & Maryland’s #1 Home Service Provider. That’s the F.H. Furr Difference. F.H. Furr is D.C., Maryland & Northern Virginia’s premier plumber, HVAC contractor and electrician. F.H. Furr is A+ rated by the Better Business Bureau and has consistently been voted Best of Prince William County for HVAC, Plumbing and electrical.
When you need AC heating or plumbing services, look no further than Horizon Services. For nearly 30 years, we’ve been the trusted name in plumbing heating, and air conditioning, offering an unmatched level of service at reasonable rates.
"Less than 5 years ago, I spent in excess of $10,000 to have a new unit installed with a 10 year warranty. I should have seen the red flags from the very beginning. The sales representative told us additional vents would be installed and when the installation crew showed up, that did not happen. Fast forward to the present and I am now on my 4th phone call for an appointment this season, 3 days so far of not being able to work as I waited for a technician to come diagnose the problem. The 3rd. tech came last night and indicated that the work the other tech did was not for the root of the problem. (I was told in front of witnesses that the work needed to be done, was not covered under warranty, would cost me $367 and would fix my issues)In fact, the 3rd tech only made the issue worse by leaving our attic return unscrewed and overfilling our unit with Freon that the 4th tech had to remove from our system. Upon leaving last night I was told that everything was corrected. Today - my home is slowly creeping up in temperature (presently 80 degrees inside, while set to 72). The company keeps trying to sell me a "maintenance plan" and I keep reiterating to EVERY one who pushes it that we have been getting tune ups/cleanings elsewhere and will only use them for warranty issues since we have had NOTHING but problems with them."
Jacqueline G on July 2024
When you need AC heating or plumbing services, look no further than Horizon Services. For nearly 30 years, we’ve been the trusted name in plumbing heating, and air conditioning, offering an unmatched level of service at reasonable rates.
"Less than 5 years ago, I spent in excess of $10,000 to have a new unit installed with a 10 year warranty. I should have seen the red flags from the very beginning. The sales representative told us additional vents would be installed and when the installation crew showed up, that did not happen. Fast forward to the present and I am now on my 4th phone call for an appointment this season, 3 days so far of not being able to work as I waited for a technician to come diagnose the problem. The 3rd. tech came last night and indicated that the work the other tech did was not for the root of the problem. (I was told in front of witnesses that the work needed to be done, was not covered under warranty, would cost me $367 and would fix my issues)In fact, the 3rd tech only made the issue worse by leaving our attic return unscrewed and overfilling our unit with Freon that the 4th tech had to remove from our system. Upon leaving last night I was told that everything was corrected. Today - my home is slowly creeping up in temperature (presently 80 degrees inside, while set to 72). The company keeps trying to sell me a "maintenance plan" and I keep reiterating to EVERY one who pushes it that we have been getting tune ups/cleanings elsewhere and will only use them for warranty issues since we have had NOTHING but problems with them."
Jacqueline G on July 2024
15+ years of experience! Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business, we feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today!
"They arrived on time and completed everything by midafternoon. The paint job and cleanup was impeccable. They provided an excellent solution to a persistent security issue. Well done."
DAVID L on May 2025
15+ years of experience! Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business, we feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today!
"They arrived on time and completed everything by midafternoon. The paint job and cleanup was impeccable. They provided an excellent solution to a persistent security issue. Well done."
DAVID L on May 2025
Alltemp Air Inc is your trusted partner for all your heating and cooling needs in Delaware. With our expertise and dedication, we ensure top-notch solutions for your comfort. As an additional DBA of American Standard Heating & Air Conditioning, we bring you the highest quality products and services. Contact us today for a seamless home experience.
"The technician came on a routine visit to find out that the unit was operating faulty (we had noticed strange noises and limited AC). George the owner came and educated us about alternatives for a replacement unit. We decided on an American Standard gold series. Installation was planned for the following week; technicians came on time with prior phone call, did clean work (maybe 5 hours) and left the workplace clean. Unit works perfectly! 10 yrs guarantee on parts."
Coco T on July 2021
Alltemp Air Inc is your trusted partner for all your heating and cooling needs in Delaware. With our expertise and dedication, we ensure top-notch solutions for your comfort. As an additional DBA of American Standard Heating & Air Conditioning, we bring you the highest quality products and services. Contact us today for a seamless home experience.
"The technician came on a routine visit to find out that the unit was operating faulty (we had noticed strange noises and limited AC). George the owner came and educated us about alternatives for a replacement unit. We decided on an American Standard gold series. Installation was planned for the following week; technicians came on time with prior phone call, did clean work (maybe 5 hours) and left the workplace clean. Unit works perfectly! 10 yrs guarantee on parts."
Coco T on July 2021
F.H. Furr provides residential products and services in the plumbing, heating, air conditioning, and electrical business. They put their customers first and provide them with quality products from trained technicians. F.H. Furr has committed to the highest degree of professional development and training in the industry, to work diligently in exceeding every expectation of the client in need. Based out of Manassas, Va., the company has expanded throughout Northern Va., Rockville, Md., Richmond, Va., and Georgetown De. Whether you need plumbing, heating, cooling, or electrical repairs or replacements, call on F.H. Furr for "Absolutely The Best" service!
"Great service. Very thorough. Called them again to do an HVAC service. Very satisfied with FH Furr. I highly recommend this company."
Elizabeth H on August 2024
F.H. Furr provides residential products and services in the plumbing, heating, air conditioning, and electrical business. They put their customers first and provide them with quality products from trained technicians. F.H. Furr has committed to the highest degree of professional development and training in the industry, to work diligently in exceeding every expectation of the client in need. Based out of Manassas, Va., the company has expanded throughout Northern Va., Rockville, Md., Richmond, Va., and Georgetown De. Whether you need plumbing, heating, cooling, or electrical repairs or replacements, call on F.H. Furr for "Absolutely The Best" service!
"Great service. Very thorough. Called them again to do an HVAC service. Very satisfied with FH Furr. I highly recommend this company."
Elizabeth H on August 2024
Founded in 2017, Mikes Home Improvement is a trusted business specializing in remodeling, tile work, and concrete services, including brick and block installation. We deliver high-quality craftsmanship for your residential projects. Whether you're updating your kitchen, renovating your bathroom, or enhancing your outdoor spaces, at Mikes Home Improvement we bring your vision to life.
"Awesome job completed, showed up every day until the job was done and work was done beautifully"
Michelle S on January 2025
Founded in 2017, Mikes Home Improvement is a trusted business specializing in remodeling, tile work, and concrete services, including brick and block installation. We deliver high-quality craftsmanship for your residential projects. Whether you're updating your kitchen, renovating your bathroom, or enhancing your outdoor spaces, at Mikes Home Improvement we bring your vision to life.
"Awesome job completed, showed up every day until the job was done and work was done beautifully"
Michelle S on January 2025
Heating and air conditioning. Sales, service, and installation. 20 yrs of experience in the hvac field. We are an American Standard dealer, but service all brands. Our services range from simple repairs to complete system installs, and duct cleaning. Licensed and Nate certified techs.
"Mike and his team did a great job with installation of a complete new HVAC system involving a ducted system on the 1st floor and mini splits on the 2nd floor (this set up best accommodated our house for function and zoning). Their experience and knowledge was demonstrated by their well planned work and installation, including working around existing conditions such as tight crawl spaces, as well as coordination with existing plumbing, electrical, structural components, etc. They coordinated and were accommodating of requests for equipment and vent locations. And they started and completed the work as promised. I would highly recommend them."
Jonathan B on May 2025
Heating and air conditioning. Sales, service, and installation. 20 yrs of experience in the hvac field. We are an American Standard dealer, but service all brands. Our services range from simple repairs to complete system installs, and duct cleaning. Licensed and Nate certified techs.
"Mike and his team did a great job with installation of a complete new HVAC system involving a ducted system on the 1st floor and mini splits on the 2nd floor (this set up best accommodated our house for function and zoning). Their experience and knowledge was demonstrated by their well planned work and installation, including working around existing conditions such as tight crawl spaces, as well as coordination with existing plumbing, electrical, structural components, etc. They coordinated and were accommodating of requests for equipment and vent locations. And they started and completed the work as promised. I would highly recommend them."
Jonathan B on May 2025
CNJ Handyman & Home Improvement Service is a LLC residing in Middletown, DE...We service all areas in the New Castle and Kent counties of Delaware...We provide free estimates, timely service, quality workmanship and personable, trustworthy work atmosphere...We at CNJ understand the value of a hard earned dollar and want to give our customers the upmost service for their dollar. CNJ customer feedback can be found at our website www.CNJHANDY.com...you can reach us for that free estimate via phone or email(cnjhandy@aol.com)..CNJ is Licensed,Insured and Bonded...A proud accredited member of the BBB...We sponsor a girls local Travel Softball team for their various functions.....If you do need our service we gladly accept Money Orders,Cash,Personal Checks, Visa, Mastercard ,Discover and American Express..We hope you take all you references and carefully chose a reputable contractor and then give us a call and be pleasantly surprised....Call me personally with any questions or comments....Carl Walter(co-owner).
CNJ Handyman & Home Improvement Service is a LLC residing in Middletown, DE...We service all areas in the New Castle and Kent counties of Delaware...We provide free estimates, timely service, quality workmanship and personable, trustworthy work atmosphere...We at CNJ understand the value of a hard earned dollar and want to give our customers the upmost service for their dollar. CNJ customer feedback can be found at our website www.CNJHANDY.com...you can reach us for that free estimate via phone or email(cnjhandy@aol.com)..CNJ is Licensed,Insured and Bonded...A proud accredited member of the BBB...We sponsor a girls local Travel Softball team for their various functions.....If you do need our service we gladly accept Money Orders,Cash,Personal Checks, Visa, Mastercard ,Discover and American Express..We hope you take all you references and carefully chose a reputable contractor and then give us a call and be pleasantly surprised....Call me personally with any questions or comments....Carl Walter(co-owner).
Most standard ductwork rerouting projects require between one and three days for completion, though complex installations may extend to a week. Factors affecting the timeline include accessibility of work areas, whether walls need opening, and the discovery of unexpected issues like asbestos or mold.
Projects involving multiple rooms or requiring extensive modifications naturally take longer. Scheduling during moderate weather seasons minimizes comfort disruptions while your system is temporarily offline.
Properly redesigned ductwork can significantly improve energy efficiency in many homes. Inefficient duct layouts may waste 20% to 30% of conditioned air through excessive length, leaky connections, or poor insulation.
Professional rerouting creates more direct airflow paths, eliminates leakage points, and often includes improved insulation. These enhancements allow your HVAC system to operate more efficiently, potentially reducing energy consumption while improving overall comfort throughout your home.
If you suspect asbestos in your ductwork or surrounding materials, immediately stop any work and contact a certified asbestos inspector. Asbestos testing services cost between $250 and $700 to confirm the presence of this hazardous material. Professional removal, if necessary, ranges from $700 to $2,200 depending on the affected area. Never attempt to remove or disturb potential asbestos materials yourself, as improper handling creates serious health risks through airborne fiber release.
Permit requirements for ductwork modifications vary by location. Many municipalities require permits for significant HVAC system changes, especially those involving structural modifications. Consulting your local building department before beginning work ensures compliance with regulations.
Working without required permits can lead to complications, including potential fines, insurance coverage issues, and disclosure requirements when selling your property. Professional HVAC contractors can handle permit applications as part of their service.